2122713261 has 24 divisors (see below), whose sum is σ = 3181582560. Its totient is φ = 1362160800.

The previous prime is 2122713247. The next prime is 2122713293. The reversal of 2122713261 is 1623172212.

It is not a de Polignac number, because 2122713261 - 2⁷ = 2122713133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122713221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74106 + ... + 98676.

It is an arithmetic number, because the mean of its divisors is an integer number (132565940).

Almost surely, 2^2122713261 is an apocalyptic number.

It is an amenable number.

2122713261 is a deficient number, since it is larger than the sum of its proper divisors (1058869299).

2122713261 is a wasteful number, since it uses less digits than its factorization.

2122713261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24937 (or 24934 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2122713261 is about 46072.9124432133. The cubic root of 2122713261 is about 1285.1794651109.

Adding to 2122713261 its reverse (1623172212), we get a palindrome (3745885473).

The spelling of 2122713261 in words is "two billion, one hundred twenty-two million, seven hundred thirteen thousand, two hundred sixty-one".