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20012202012223 = 194125689604637
BaseRepresentation
bin1001000110011011101000…
…01100010010111000111111
32121212010222202200221200101
410203031310030102320333
510110334442203342343
6110321251221341531
74133556010303351
oct443156414227077
977763882627611
1020012202012223
116416144356463
1222b25b9b678a7
13b221b1258705
144d284aa230d1
1524a86b20be4d
hex123374312e3f

20012202012223 has 8 divisors (see below), whose sum is σ = 21579267895920. Its totient is φ = 18496515337920.

The previous prime is 20012202012217. The next prime is 20012202012241. The reversal of 20012202012223 is 32221020221002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20012202012223 - 225 = 20012168457791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20012202012223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012202016223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12844801540 + ... + 12844803097.

It is an arithmetic number, because the mean of its divisors is an integer number (2697408486990).

Almost surely, 220012202012223 is an apocalyptic number.

20012202012223 is a deficient number, since it is larger than the sum of its proper divisors (1567065883697).

20012202012223 is a wasteful number, since it uses less digits than its factorization.

20012202012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25689604697.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20012202012223 its reverse (32221020221002), we get a palindrome (52233222233225).

The spelling of 20012202012223 in words is "twenty trillion, twelve billion, two hundred two million, twelve thousand, two hundred twenty-three".

Divisors: 1 19 41 779 25689604637 488102488103 1053273790117 20012202012223