122101002100 has 72 divisors (see below), whose sum is σ = 330338731968. Its totient is φ = 38057452800.

The previous prime is 122101002043. The next prime is 122101002103. The reversal of 122101002100 is 1200101221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101002103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7920937 + ... + 7936336.

It is an arithmetic number, because the mean of its divisors is an integer number (4588037944).

Almost surely, 2^122101002100 is an apocalyptic number.

122101002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122101002100 is an abundant number, since it is smaller than the sum of its proper divisors (208237729868).

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

122101002100 is a wasteful number, since it uses less digits than its factorization.

122101002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857305 (or 15857298 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122101002100 its reverse (1200101221), we get a palindrome (123301103321).

The spelling of 122101002100 in words is "one hundred twenty-two billion, one hundred one million, two thousand, one hundred".