199056522722 has 6 divisors (see below), whose sum is σ = 298585730529. Its totient is φ = 99527945880.

The previous prime is 199056522659. The next prime is 199056522773. The reversal of 199056522722 is 227225650991.

It can be written as a sum of positive squares in 2 ways, for example, as 183964645921 + 15091876801 = 428911^2 + 122849^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=315481.

It is a super-3 number, since 3×199056522722³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 473222 + ... + 788702.

Almost surely, 2^199056522722 is an apocalyptic number.

199056522722 is a deficient number, since it is larger than the sum of its proper divisors (99529207807).

199056522722 is an frugal number, since it uses more digits than its factorization.

199056522722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630964 (or 315483 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 50.

Multiplying 199056522722 by its sum of digits (50), we get a square (9952826136100 = 3154810²).

The spelling of 199056522722 in words is "one hundred ninety-nine billion, fifty-six million, five hundred twenty-two thousand, seven hundred twenty-two".