122101102100 has 18 divisors (see below), whose sum is σ = 264959391774. Its totient is φ = 48840440800.

The previous prime is 122101102091. The next prime is 122101102117. The reversal of 122101102100 is 1201101221.

It can be written as a sum of positive squares in 3 ways, for example, as 31781619076 + 90319483024 = 178274^2 + 300532^2 .

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, 610505411 + ... + 610505610.

Almost surely, 2^122101102100 is an apocalyptic number.

122101102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122101102100 is an abundant number, since it is smaller than the sum of its proper divisors (142858289674).

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

122101102100 is a wasteful number, since it uses less digits than its factorization.

122101102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221011035 (or 1221011028 counting only the distinct ones).

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

Adding to 122101102100 its reverse (1201101221), we get a palindrome (123302203321).

The spelling of 122101102100 in words is "one hundred twenty-two billion, one hundred one million, one hundred two thousand, one hundred".