2100010012122 has 32 divisors (see below), whose sum is σ = 4582228939200. Its totient is φ = 636312654720.

The previous prime is 2100010012099. The next prime is 2100010012129. The reversal of 2100010012122 is 2212100100012.

It is a junction number, because it is equal to n+sod(n) for n = 2100010012098 and 2100010012107.

It is not an unprimeable number, because it can be changed into a prime (2100010012129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563497 + ... + 2125452.

It is an arithmetic number, because the mean of its divisors is an integer number (143194654350).

Almost surely, 2^{2100010012122} is an apocalyptic number.

2100010012122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2100010012122 is an abundant number, since it is smaller than the sum of its proper divisors (2482218927078).

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

2100010012122 is a wasteful number, since it uses less digits than its factorization.

2100010012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700798.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2100010012122 its reverse (2212100100012), we get a palindrome (4312110112134).

The spelling of 2100010012122 in words is "two trillion, one hundred billion, ten million, twelve thousand, one hundred twenty-two".