122210021200 has 30 divisors (see below), whose sum is σ = 293609576894. Its totient is φ = 48884008320.

The previous prime is 122210021183. The next prime is 122210021233. The reversal of 122210021200 is 2120012221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 42111964944 + 80098056256 = 205212^2 + 283016^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152762127 + ... + 152762926.

Almost surely, 2^122210021200 is an apocalyptic number.

122210021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122210021200 is an abundant number, since it is smaller than the sum of its proper divisors (171399555694).

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

122210021200 is a wasteful number, since it uses less digits than its factorization.

122210021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305525071 (or 305525060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122210021200 its reverse (2120012221), we get a palindrome (124330033421).

The spelling of 122210021200 in words is "one hundred twenty-two billion, two hundred ten million, twenty-one thousand, two hundred".