22120012102200 has 96 divisors (see below), whose sum is σ = 68573237066160. Its totient is φ = 5898566707200.

The previous prime is 22120012102189. The next prime is 22120012102231. The reversal of 22120012102200 is 220121002122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22120012102200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37747440 + ... + 38328960.

Almost surely, 2^{22120012102200} is an apocalyptic number.

22120012102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120012102200 is an abundant number, since it is smaller than the sum of its proper divisors (46453224963960).

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

22120012102200 is a wasteful number, since it uses less digits than its factorization.

22120012102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644937 (or 644928 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22120012102200 its reverse (220121002122), we get a palindrome (22340133104322).

The spelling of 22120012102200 in words is "twenty-two trillion, one hundred twenty billion, twelve million, one hundred two thousand, two hundred".