2101200102122 has 16 divisors (see below), whose sum is σ = 3518288544672. Its totient is φ = 932879537520.

The previous prime is 2101200102109. The next prime is 2101200102193. The reversal of 2101200102122 is 2212010021012.

It is a junction number, because it is equal to n+sod(n) for n = 2101200102097 and 2101200102106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110569933 + ... + 1110571824.

It is an arithmetic number, because the mean of its divisors is an integer number (219893034042).

Almost surely, 2^{2101200102122} is an apocalyptic number.

2101200102122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101200102122 is a deficient number, since it is larger than the sum of its proper divisors (1417088442550).

2101200102122 is a wasteful number, since it uses less digits than its factorization.

2101200102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221141813.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2101200102122 its reverse (2212010021012), we get a palindrome (4313210123134).

The spelling of 2101200102122 in words is "two trillion, one hundred one billion, two hundred million, one hundred two thousand, one hundred twenty-two".