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20021100022101 = 36673700007367
BaseRepresentation
bin1001000110101100001101…
…00011100000100101010101
32121212222221212212200112210
410203112012203200211111
510111011203101201401
6110325322200504033
74134322344163203
oct443260643404525
977788855780483
1020021100022101
1164199a0016a32
1222b4281a7b019
13b22c9b849409
144d305268a073
1524abdc48e4d6
hex1235868e0955

20021100022101 has 4 divisors (see below), whose sum is σ = 26694800029472. Its totient is φ = 13347400014732.

The previous prime is 20021100022097. The next prime is 20021100022141. The reversal of 20021100022101 is 10122000112002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20021100022101 - 22 = 20021100022097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021100022141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336850003681 + ... + 3336850003686.

It is an arithmetic number, because the mean of its divisors is an integer number (6673700007368).

Almost surely, 220021100022101 is an apocalyptic number.

It is an amenable number.

20021100022101 is a deficient number, since it is larger than the sum of its proper divisors (6673700007371).

20021100022101 is an equidigital number, since it uses as much as digits as its factorization.

20021100022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673700007370.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20021100022101 its reverse (10122000112002), we get a palindrome (30143100134103).

The spelling of 20021100022101 in words is "twenty trillion, twenty-one billion, one hundred million, twenty-two thousand, one hundred one".

Divisors: 1 3 6673700007367 20021100022101