22215521215253 has 8 divisors (see below), whose sum is σ = 22640021633280. Its totient is φ = 21794603079600.

The previous prime is 22215521215163. The next prime is 22215521215337. The reversal of 22215521215253 is 35251212551222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22215521215253 - 2³² = 22211226247957 is a prime.

It is a super-2 number, since 2×22215521215253² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22215521215453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895558073 + ... + 895582878.

It is an arithmetic number, because the mean of its divisors is an integer number (2830002704160).

Almost surely, 2^{22215521215253} is an apocalyptic number.

It is an amenable number.

22215521215253 is a deficient number, since it is larger than the sum of its proper divisors (424500418027).

22215521215253 is a wasteful number, since it uses less digits than its factorization.

22215521215253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791141187.

The product of its digits is 120000, while the sum is 38.

Adding to 22215521215253 its reverse (35251212551222), we get a palindrome (57466733766475).

The spelling of 22215521215253 in words is "twenty-two trillion, two hundred fifteen billion, five hundred twenty-one million, two hundred fifteen thousand, two hundred fifty-three".