22002031200 has 72 divisors (see below), whose sum is σ = 71616619368. Its totient is φ = 5867207680.

The previous prime is 22002031169. The next prime is 22002031201. The reversal of 22002031200 is 213020022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002031201) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4581357 + ... + 4586156.

It is an arithmetic number, because the mean of its divisors is an integer number (994675269).

Almost surely, 2^22002031200 is an apocalyptic number.

22002031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002031200 is an abundant number, since it is smaller than the sum of its proper divisors (49614588168).

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

22002031200 is a wasteful number, since it uses less digits than its factorization.

22002031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9167536 (or 9167523 counting only the distinct ones).

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

Adding to 22002031200 its reverse (213020022), we get a palindrome (22215051222).

The spelling of 22002031200 in words is "twenty-two billion, two million, thirty-one thousand, two hundred".