22121134132200 has 48 divisors (see below), whose sum is σ = 68575515811680. Its totient is φ = 5898969101760.

The previous prime is 22121134132171. The next prime is 22121134132241. The reversal of 22121134132200 is 223143112122.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 18434277844 + ... + 18434279043.

It is an arithmetic number, because the mean of its divisors is an integer number (1428656579410).

Almost surely, 2^{22121134132200} is an apocalyptic number.

22121134132200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121134132200 is an abundant number, since it is smaller than the sum of its proper divisors (46454381679480).

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

22121134132200 is a wasteful number, since it uses less digits than its factorization.

22121134132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36868556906 (or 36868556897 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 22121134132200 its reverse (223143112122), we get a palindrome (22344277244322).

The spelling of 22121134132200 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred thirty-four million, one hundred thirty-two thousand, two hundred".