22215033231255 has 16 divisors (see below), whose sum is σ = 39493392411360. Its totient is φ = 11848017723264.

The previous prime is 22215033231229. The next prime is 22215033231409. The reversal of 22215033231255 is 55213233051222.

22215033231255 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 5 + 0 + 332 + 312 + 5 + 5 = 666.

It is not a de Polignac number, because 22215033231255 - 2¹⁰ = 22215033230231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82277900722 + ... + 82277900991.

It is an arithmetic number, because the mean of its divisors is an integer number (2468337025710).

Almost surely, 2^{22215033231255} is an apocalyptic number.

22215033231255 is a deficient number, since it is larger than the sum of its proper divisors (17278359180105).

22215033231255 is a wasteful number, since it uses less digits than its factorization.

22215033231255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164555801727 (or 164555801721 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 22215033231255 its reverse (55213233051222), we get a palindrome (77428266282477).

The spelling of 22215033231255 in words is "twenty-two trillion, two hundred fifteen billion, thirty-three million, two hundred thirty-one thousand, two hundred fifty-five".