22121101102210 has 32 divisors (see below), whose sum is σ = 43446199915584. Its totient is φ = 8042480952000.

The previous prime is 22121101102181. The next prime is 22121101102211. The reversal of 22121101102210 is 1220110112122.

It is a super-2 number, since 2×22121101102210² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22121101102211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18876261 + ... + 20013880.

It is an arithmetic number, because the mean of its divisors is an integer number (1357693747362).

Almost surely, 2^{22121101102210} is an apocalyptic number.

22121101102210 is a deficient number, since it is larger than the sum of its proper divisors (21325098813374).

22121101102210 is a wasteful number, since it uses less digits than its factorization.

22121101102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38895330.

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

Adding to 22121101102210 its reverse (1220110112122), we get a palindrome (23341211214332).

The spelling of 22121101102210 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred one million, one hundred two thousand, two hundred ten".