22025121300 has 216 divisors, whose sum is σ = 84968339456. Its totient is φ = 4647041280.

The previous prime is 22025121259. The next prime is 22025121337. The reversal of 22025121300 is 312152022.

22025121300 is a `hidden beast` number, since 2 + 20 + 2 + 512 + 130 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 52564 + ... + 216363.

Almost surely, 2^22025121300 is an apocalyptic number.

22025121300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22025121300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42484169728).

22025121300 is an abundant number, since it is smaller than the sum of its proper divisors (62943218156).

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

22025121300 is a wasteful number, since it uses less digits than its factorization.

22025121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268967 (or 268957 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 22025121300 its reverse (312152022), we get a palindrome (22337273322).

The spelling of 22025121300 in words is "twenty-two billion, twenty-five million, one hundred twenty-one thousand, three hundred".