22121111010200 has 24 divisors (see below), whose sum is σ = 51431583099180. Its totient is φ = 8848444404000.

The previous prime is 22121111010179. The next prime is 22121111010233. The reversal of 22121111010200 is 201011112122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55302777326 + ... + 55302777725.

Almost surely, 2^{22121111010200} is an apocalyptic number.

22121111010200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121111010200 is an abundant number, since it is smaller than the sum of its proper divisors (29310472088980).

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

22121111010200 is a wasteful number, since it uses less digits than its factorization.

22121111010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110605555067 (or 110605555058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22121111010200 its reverse (201011112122), we get a palindrome (22322122122322).

The spelling of 22121111010200 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, ten thousand, two hundred".