2101122122 has 32 divisors (see below), whose sum is σ = 3523322880. Its totient is φ = 931549680.

The previous prime is 2101122097. The next prime is 2101122137. The reversal of 2101122122 is 2212211012.

It is a junction number, because it is equal to n+sod(n) for n = 2101122097 and 2101122106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314129 + ... + 320747.

It is an arithmetic number, because the mean of its divisors is an integer number (110103840).

Almost surely, 2^2101122122 is an apocalyptic number.

2101122122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101122122 is a deficient number, since it is larger than the sum of its proper divisors (1422200758).

2101122122 is a wasteful number, since it uses less digits than its factorization.

2101122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6986.

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

The square root of 2101122122 is about 45837.9986692264. The cubic root of 2101122122 is about 1280.8072142232.

Adding to 2101122122 its reverse (2212211012), we get a palindrome (4313333134).

The spelling of 2101122122 in words is "two billion, one hundred one million, one hundred twenty-two thousand, one hundred twenty-two".