22155216514324 has 12 divisors (see below), whose sum is σ = 38822047148500. Its totient is φ = 11063203043328.

The previous prime is 22155216514303. The next prime is 22155216514373. The reversal of 22155216514324 is 42341561255122.

It can be written as a sum of positive squares in 2 ways, for example, as 13042860020100 + 9112356494224 = 3611490^2 + 3018668^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3601299999 + ... + 3601306150.

Almost surely, 2^{22155216514324} is an apocalyptic number.

It is an amenable number.

22155216514324 is a deficient number, since it is larger than the sum of its proper divisors (16666830634176).

22155216514324 is a wasteful number, since it uses less digits than its factorization.

22155216514324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7202606922 (or 7202606920 counting only the distinct ones).

The product of its digits is 576000, while the sum is 43.

Adding to 22155216514324 its reverse (42341561255122), we get a palindrome (64496777769446).

The spelling of 22155216514324 in words is "twenty-two trillion, one hundred fifty-five billion, two hundred sixteen million, five hundred fourteen thousand, three hundred twenty-four".