122111002100 has 36 divisors (see below), whose sum is σ = 265122906048. Its totient is φ = 48818220000.

The previous prime is 122111002067. The next prime is 122111002141. The reversal of 122111002100 is 1200111221.

122111002100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122111002100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139226 + ... + 513425.

It is an arithmetic number, because the mean of its divisors is an integer number (7364525168).

Almost surely, 2^122111002100 is an apocalyptic number.

122111002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111002100 is an abundant number, since it is smaller than the sum of its proper divisors (143011903948).

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

122111002100 is a wasteful number, since it uses less digits than its factorization.

122111002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654536 (or 654529 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122111002100 its reverse (1200111221), we get a palindrome (123311113321).

The spelling of 122111002100 in words is "one hundred twenty-two billion, one hundred eleven million, two thousand, one hundred".