2168552172222 has 24 divisors (see below), whose sum is σ = 4698589353120. Its totient is φ = 722841547680.

The previous prime is 2168552172133. The next prime is 2168552172257. The reversal of 2168552172222 is 2222712558612.

2168552172222 is a `hidden beast` number, since 2 + 1 + 6 + 8 + 552 + 1 + 72 + 2 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 776554 + ... + 2222642.

It is an arithmetic number, because the mean of its divisors is an integer number (195774556380).

Almost surely, 2^{2168552172222} is an apocalyptic number.

2168552172222 is an abundant number, since it is smaller than the sum of its proper divisors (2530037180898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2168552172222 is a wasteful number, since it uses less digits than its factorization.

2168552172222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529408 (or 1529405 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The spelling of 2168552172222 in words is "two trillion, one hundred sixty-eight billion, five hundred fifty-two million, one hundred seventy-two thousand, two hundred twenty-two".