22212221031100 has 36 divisors (see below), whose sum is σ = 48201219096408. Its totient is φ = 8884759480000.

The previous prime is 22212221031079. The next prime is 22212221031157. The reversal of 22212221031100 is 113012221222.

It is a super-2 number, since 2×22212221031100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5468670 + ... + 8621530.

It is an arithmetic number, because the mean of its divisors is an integer number (1338922752678).

Almost surely, 2^{22212221031100} is an apocalyptic number.

22212221031100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212221031100 is an abundant number, since it is smaller than the sum of its proper divisors (25988998065308).

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

22212221031100 is a wasteful number, since it uses less digits than its factorization.

22212221031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223326 (or 3223319 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22212221031100 its reverse (113012221222), we get a palindrome (22325233252322).

The spelling of 22212221031100 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-one million, thirty-one thousand, one hundred".