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22012102201121 = 199911011556879
BaseRepresentation
bin1010000000101000101111…
…00010000100111100100001
32212221100002020201212112222
411000110113202010330201
510341121241130413441
6114452115315200425
74431215261364104
oct500242742047441
985840066655488
1022012102201121
11701730992472a
1225761145a6115
13c38969c14256
1456156a13073b
152828ba570d4b
hex140517884f21

22012102201121 has 4 divisors (see below), whose sum is σ = 22023113760000. Its totient is φ = 22001090642244.

The previous prime is 22012102201039. The next prime is 22012102201127. The reversal of 22012102201121 is 12110220121022.

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 22012102201121 - 230 = 22011028459297 is a prime.

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 22012102201121.

It is not an unprimeable number, because it can be changed into a prime (22012102201127) 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, 5505776441 + ... + 5505780438.

It is an arithmetic number, because the mean of its divisors is an integer number (5505778440000).

Almost surely, 222012102201121 is an apocalyptic number.

It is an amenable number.

22012102201121 is a deficient number, since it is larger than the sum of its proper divisors (11011558879).

22012102201121 is a wasteful number, since it uses less digits than its factorization.

22012102201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011558878.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22012102201121 its reverse (12110220121022), we get a palindrome (34122322322143).

The spelling of 22012102201121 in words is "twenty-two trillion, twelve billion, one hundred two million, two hundred one thousand, one hundred twenty-one".

Divisors: 1 1999 11011556879 22012102201121