2215154818239 has 16 divisors (see below), whose sum is σ = 3222129884160. Its totient is φ = 1342482024960.

The previous prime is 2215154818231. The next prime is 2215154818249. The reversal of 2215154818239 is 9328184515122.

It is not a de Polignac number, because 2215154818239 - 2³ = 2215154818231 is a prime.

It is a super-2 number, since 2×2215154818239² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215154818191 and 2215154818200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215154818231) 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, 373407 + ... + 2137695.

It is an arithmetic number, because the mean of its divisors is an integer number (201383117760).

Almost surely, 2^{2215154818239} is an apocalyptic number.

2215154818239 is a deficient number, since it is larger than the sum of its proper divisors (1006975065921).

2215154818239 is a wasteful number, since it uses less digits than its factorization.

2215154818239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802350.

The product of its digits is 1382400, while the sum is 51.

The spelling of 2215154818239 in words is "two trillion, two hundred fifteen billion, one hundred fifty-four million, eight hundred eighteen thousand, two hundred thirty-nine".