122002121200 has 30 divisors (see below), whose sum is σ = 293110097144. Its totient is φ = 48800848320.

The previous prime is 122002121183. The next prime is 122002121203. The reversal of 122002121200 is 2121200221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152502252 + ... + 152503051.

Almost surely, 2^122002121200 is an apocalyptic number.

122002121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122002121200 is an abundant number, since it is smaller than the sum of its proper divisors (171107975944).

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

122002121200 is a wasteful number, since it uses less digits than its factorization.

122002121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305005321 (or 305005310 counting only the distinct ones).

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

Adding to 122002121200 its reverse (2121200221), we get a palindrome (124123321421).

The spelling of 122002121200 in words is "one hundred twenty-two billion, two million, one hundred twenty-one thousand, two hundred".