2122513135 has 4 divisors (see below), whose sum is σ = 2547015768. Its totient is φ = 1698010504.

The previous prime is 2122513109. The next prime is 2122513171. The reversal of 2122513135 is 5313152212.

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

It is a cyclic number.

It is not a de Polignac number, because 2122513135 - 2²³ = 2114124527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212251309 + ... + 212251318.

It is an arithmetic number, because the mean of its divisors is an integer number (636753942).

Almost surely, 2^2122513135 is an apocalyptic number.

2122513135 is a deficient number, since it is larger than the sum of its proper divisors (424502633).

2122513135 is an equidigital number, since it uses as much as digits as its factorization.

2122513135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424502632.

The product of its digits is 1800, while the sum is 25.

The square root of 2122513135 is about 46070.7405518948. The cubic root of 2122513135 is about 1285.1390756224.

Adding to 2122513135 its reverse (5313152212), we get a palindrome (7435665347).

The spelling of 2122513135 in words is "two billion, one hundred twenty-two million, five hundred thirteen thousand, one hundred thirty-five".