22111100121010 has 32 divisors (see below), whose sum is σ = 40050256986432. Its totient is φ = 8788997067840.

The previous prime is 22111100121007. The next prime is 22111100121017. The reversal of 22111100121010 is 1012100111122.

It is a happy number.

It is a super-2 number, since 2×22111100121010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22111100121017) 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 15 ways as a sum of consecutive naturals, for example, 9863457 + ... + 11895796.

It is an arithmetic number, because the mean of its divisors is an integer number (1251570530826).

Almost surely, 2^{22111100121010} is an apocalyptic number.

22111100121010 is a deficient number, since it is larger than the sum of its proper divisors (17939156865422).

22111100121010 is a wasteful number, since it uses less digits than its factorization.

22111100121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21759898.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 22111100121010 its reverse (1012100111122), we get a palindrome (23123200232132).

The spelling of 22111100121010 in words is "twenty-two trillion, one hundred eleven billion, one hundred million, one hundred twenty-one thousand, ten".