22215515112135 has 64 divisors (see below), whose sum is σ = 40642951680000. Its totient is φ = 11504947487616.

The previous prime is 22215515112107. The next prime is 22215515112151. The reversal of 22215515112135 is 53121151551222.

It is a happy number.

22215515112135 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 5 + 5 + 1 + 511 + 2 + 135 = 666.

It is not a de Polignac number, because 22215515112135 - 2⁸ = 22215515111879 is a prime.

It is a super-2 number, since 2×22215515112135² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22215515112135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1963959 + ... + 6948968.

It is an arithmetic number, because the mean of its divisors is an integer number (635046120000).

Almost surely, 2^{22215515112135} is an apocalyptic number.

22215515112135 is a deficient number, since it is larger than the sum of its proper divisors (18427436567865).

22215515112135 is a wasteful number, since it uses less digits than its factorization.

22215515112135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8913477 (or 8913471 counting only the distinct ones).

The product of its digits is 30000, while the sum is 36.

Adding to 22215515112135 its reverse (53121151551222), we get a palindrome (75336666663357).

The spelling of 22215515112135 in words is "twenty-two trillion, two hundred fifteen billion, five hundred fifteen million, one hundred twelve thousand, one hundred thirty-five".