22150431200 has 72 divisors (see below), whose sum is σ = 54610332840. Its totient is φ = 8772416000.

The previous prime is 22150431187. The next prime is 22150431257. The reversal of 22150431200 is 213405122.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 56270 + ... + 217869.

It is an arithmetic number, because the mean of its divisors is an integer number (758476845).

Almost surely, 2^22150431200 is an apocalyptic number.

22150431200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22150431200 is an abundant number, since it is smaller than the sum of its proper divisors (32459901640).

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

22150431200 is a wasteful number, since it uses less digits than its factorization.

22150431200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274260 (or 274247 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 22150431200 its reverse (213405122), we get a palindrome (22363836322).

The spelling of 22150431200 in words is "twenty-two billion, one hundred fifty million, four hundred thirty-one thousand, two hundred".