2113125122 has 4 divisors (see below), whose sum is σ = 3169687686. Its totient is φ = 1056562560.

The previous prime is 2113125089. The next prime is 2113125149. The reversal of 2113125122 is 2215213112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1694063281 + 419061841 = 41159^2 + 20471^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2113125094 and 2113125103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528281279 + ... + 528281282.

Almost surely, 2^2113125122 is an apocalyptic number.

2113125122 is a deficient number, since it is larger than the sum of its proper divisors (1056562564).

2113125122 is a wasteful number, since it uses less digits than its factorization.

2113125122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056562563.

The product of its digits is 240, while the sum is 20.

The square root of 2113125122 is about 45968.7407049617. The cubic root of 2113125122 is about 1283.2415240931.

Adding to 2113125122 its reverse (2215213112), we get a palindrome (4328338234).

The spelling of 2113125122 in words is "two billion, one hundred thirteen million, one hundred twenty-five thousand, one hundred twenty-two".