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22102101210121 = 64913405037931
BaseRepresentation
bin1010000011010000010111…
…11001000011010000001001
32220020221101102202020021121
411001220023321003100021
510344110100402210441
6115001322022235241
74440552446342332
oct501501371032011
986227342666247
1022102101210121
1170514a2a29209
12258b650b85b21
13c442b077a42a
14565a66c51289
15284dd67a3dd1
hex141a0be43409

22102101210121 has 4 divisors (see below), whose sum is σ = 22105506254544. Its totient is φ = 22098696165700.

The previous prime is 22102101210107. The next prime is 22102101210181. The reversal of 22102101210121 is 12101210120122.

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 a cyclic number.

It is not a de Polignac number, because 22102101210121 - 221 = 22102099112969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102101210095 and 22102101210104.

It is not an unprimeable number, because it can be changed into a prime (22102101210181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702512475 + ... + 1702525456.

It is an arithmetic number, because the mean of its divisors is an integer number (5526376563636).

Almost surely, 222102101210121 is an apocalyptic number.

It is an amenable number.

22102101210121 is a deficient number, since it is larger than the sum of its proper divisors (3405044423).

22102101210121 is an equidigital number, since it uses as much as digits as its factorization.

22102101210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405044422.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22102101210121 its reverse (12101210120122), we get a palindrome (34203311330243).

The spelling of 22102101210121 in words is "twenty-two trillion, one hundred two billion, one hundred one million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 6491 3405037931 22102101210121