22020031200 has 72 divisors (see below), whose sum is σ = 71675209368. Its totient is φ = 5872007680.

The previous prime is 22020031183. The next prime is 22020031213. The reversal of 22020031200 is 213002022.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 4585107 + ... + 4589906.

It is an arithmetic number, because the mean of its divisors is an integer number (995489019).

Almost surely, 2^22020031200 is an apocalyptic number.

22020031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020031200 is an abundant number, since it is smaller than the sum of its proper divisors (49655178168).

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

22020031200 is a wasteful number, since it uses less digits than its factorization.

22020031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175036 (or 9175023 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 22020031200 its reverse (213002022), we get a palindrome (22233033222).

The spelling of 22020031200 in words is "twenty-two billion, twenty million, thirty-one thousand, two hundred".