122021202100 has 72 divisors (see below), whose sum is σ = 302663406080. Its totient is φ = 41828814720.

The previous prime is 122021202097. The next prime is 122021202101. The reversal of 122021202100 is 1202120221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021202101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5811421 + ... + 5832379.

Almost surely, 2^122021202100 is an apocalyptic number.

122021202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122021202100 is an abundant number, since it is smaller than the sum of its proper divisors (180642203980).

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

122021202100 is a wasteful number, since it uses less digits than its factorization.

122021202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29297 (or 29290 counting only the distinct ones).

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

Adding to 122021202100 its reverse (1202120221), we get a palindrome (123223322321).

The spelling of 122021202100 in words is "one hundred twenty-two billion, twenty-one million, two hundred two thousand, one hundred".