22252215771 has 12 divisors (see below), whose sum is σ = 32144098272. Its totient is φ = 14833883376.

The previous prime is 22252215761. The next prime is 22252215779. The reversal of 22252215771 is 17751225222.

It is not a de Polignac number, because 22252215771 - 2²³ = 22243827163 is a prime.

It is a super-2 number, since 2×22252215771² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22252215779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94945 + ... + 231341.

It is an arithmetic number, because the mean of its divisors is an integer number (2678674856).

Almost surely, 2^22252215771 is an apocalyptic number.

22252215771 is a deficient number, since it is larger than the sum of its proper divisors (9891882501).

22252215771 is a wasteful number, since it uses less digits than its factorization.

22252215771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154530 (or 154527 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The spelling of 22252215771 in words is "twenty-two billion, two hundred fifty-two million, two hundred fifteen thousand, seven hundred seventy-one".