2122399617 has 16 divisors (see below), whose sum is σ = 3207946560. Its totient is φ = 1237349952.

The previous prime is 2122399613. The next prime is 2122399649. The reversal of 2122399617 is 7169932212.

It is not a de Polignac number, because 2122399617 - 2² = 2122399613 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122399613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431378 + ... + 1432859.

It is an arithmetic number, because the mean of its divisors is an integer number (200496660).

Almost surely, 2^2122399617 is an apocalyptic number.

It is an amenable number.

2122399617 is a deficient number, since it is larger than the sum of its proper divisors (1085546943).

2122399617 is a wasteful number, since it uses less digits than its factorization.

2122399617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864272.

The product of its digits is 81648, while the sum is 42.

The square root of 2122399617 is about 46069.5085387287. The cubic root of 2122399617 is about 1285.1161642576.

The spelling of 2122399617 in words is "two billion, one hundred twenty-two million, three hundred ninety-nine thousand, six hundred seventeen".