22031112002100 has 144 divisors (see below), whose sum is σ = 64005861279360. Its totient is φ = 5850782784000.

The previous prime is 22031112002099. The next prime is 22031112002111. The reversal of 22031112002100 is 120021113022.

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 22031112002100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 260406606 + ... + 260491194.

Almost surely, 2^{22031112002100} is an apocalyptic number.

22031112002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22031112002100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32002930639680).

22031112002100 is an abundant number, since it is smaller than the sum of its proper divisors (41974749277260).

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

22031112002100 is a wasteful number, since it uses less digits than its factorization.

22031112002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88170 (or 88163 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22031112002100 its reverse (120021113022), we get a palindrome (22151133115122).

The spelling of 22031112002100 in words is "twenty-two trillion, thirty-one billion, one hundred twelve million, two thousand, one hundred".