22211112210 has 64 divisors (see below), whose sum is σ = 62568467712. Its totient is φ = 4939612416.

The previous prime is 22211112197. The next prime is 22211112227. The reversal of 22211112210 is 1221111222.

It is a super-2 number, since 2×22211112210² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22211112210.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1421517 + ... + 1437056.

It is an arithmetic number, because the mean of its divisors is an integer number (977632308).

Almost surely, 2^22211112210 is an apocalyptic number.

22211112210 is an abundant number, since it is smaller than the sum of its proper divisors (40357355502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22211112210 is a wasteful number, since it uses less digits than its factorization.

22211112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858627.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22211112210 its reverse (1221111222), we get a palindrome (23432223432).

It can be divided in two parts, 22211 and 112210, that added together give a triangular number (134421 = T₅₁₈).

The spelling of 22211112210 in words is "twenty-two billion, two hundred eleven million, one hundred twelve thousand, two hundred ten".