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20021022022012 = 221173101137450473
BaseRepresentation
bin1001000110101100000011…
…11001111101100101111100
32121212222202110002212112121
410203112001321331211330
510111011023114201022
6110325310333012324
74134320406166534
oct443260171754574
977788673085477
1020021022022012
11641995aa91350
1222b425b9240a4
13b22c8863940b
144d30461844c4
1524abd56d32c7
hex123581e7d97c

20021022022012 has 96 divisors (see below), whose sum is σ = 39414860501184. Its totient is φ = 8822043648000.

The previous prime is 20021022021919. The next prime is 20021022022051. The reversal of 20021022022012 is 21022022012002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44219208 + ... + 44669680.

It is an arithmetic number, because the mean of its divisors is an integer number (410571463554).

Almost surely, 220021022022012 is an apocalyptic number.

20021022022012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20021022022012 is a deficient number, since it is larger than the sum of its proper divisors (19393838479172).

20021022022012 is a wasteful number, since it uses less digits than its factorization.

20021022022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450799 (or 450797 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20021022022012 its reverse (21022022012002), we get a palindrome (41043044034014).

It can be divided in two parts, 200210 and 22022012, that added together give a palindrome (22222222).

The spelling of 20021022022012 in words is "twenty trillion, twenty-one billion, twenty-two million, twenty-two thousand, twelve".

Divisors: 1 2 4 11 22 44 73 101 137 146 202 274 292 404 548 803 1111 1507 1606 2222 3014 3212 4444 6028 7373 10001 13837 14746 20002 27674 29492 40004 55348 81103 110011 152207 162206 220022 304414 324412 440044 450473 608828 900946 1010101 1801892 2020202 4040404 4955203 9910406 11111111 19820812 22222222 32884529 44444444 45497773 61714801 65769058 90995546 123429602 131538116 181991092 246859204 361729819 500475503 678862811 723459638 1000951006 1357725622 1446919276 2001902012 2715451244 3321337429 4505180473 6233194901 6642674858 9010360946 12466389802 13285349716 18020721892 24932779604 36534711719 49556985203 68565143911 73069423438 99113970406 137130287822 146138846876 198227940812 274260575644 455023227773 910046455546 1820092911092 5005255505503 10010511011006 20021022022012