2122100000100 has 72 divisors (see below), whose sum is σ = 6822158527520. Its totient is φ = 565893332640.

The previous prime is 2122100000093. The next prime is 2122100000179. The reversal of 2122100000100 is 10000012212.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392978782 + ... + 392984181.

Almost surely, 2^{2122100000100} is an apocalyptic number.

2122100000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122100000100 is an abundant number, since it is smaller than the sum of its proper divisors (4700058527420).

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

2122100000100 is a wasteful number, since it uses less digits than its factorization.

2122100000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785962986 (or 785962973 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2122100000100 its reverse (10000012212), we get a palindrome (2132100012312).

The spelling of 2122100000100 in words is "two trillion, one hundred twenty-two billion, one hundred million, one hundred", and thus it is an aban number.