22021121300 has 36 divisors (see below), whose sum is σ = 48897141216. Its totient is φ = 8603599200.

The previous prime is 22021121263. The next prime is 22021121303. The reversal of 22021121300 is 312112022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021121303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2556296 + ... + 2564895.

Almost surely, 2^22021121300 is an apocalyptic number.

22021121300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021121300 is an abundant number, since it is smaller than the sum of its proper divisors (26876019916).

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

22021121300 is a wasteful number, since it uses less digits than its factorization.

22021121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121248 (or 5121241 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22021121300 its reverse (312112022), we get a palindrome (22333233322).

The spelling of 22021121300 in words is "twenty-two billion, twenty-one million, one hundred twenty-one thousand, three hundred".