122212021200 has 120 divisors (see below), whose sum is σ = 402066685728. Its totient is φ = 31709053440.

The previous prime is 122212021199. The next prime is 122212021297. The reversal of 122212021200 is 2120212221.

It is a tau number, because it is divible by the number of its divisors (120).

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 122212021200.

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, 1331862 + ... + 1420661.

Almost surely, 2^122212021200 is an apocalyptic number.

122212021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212021200 is an abundant number, since it is smaller than the sum of its proper divisors (279854664528).

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

122212021200 is a wasteful number, since it uses less digits than its factorization.

122212021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752581 (or 2752570 counting only the distinct ones).

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

Adding to 122212021200 its reverse (2120212221), we get a palindrome (124332233421).

It can be divided in two parts, 122212021 and 200, that added together give a palindrome (122212221).

The spelling of 122212021200 in words is "one hundred twenty-two billion, two hundred twelve million, twenty-one thousand, two hundred".