20931182534722 has 16 divisors (see below), whose sum is σ = 33817822457760. Its totient is φ = 9684194611392.

The previous prime is 20931182534699. The next prime is 20931182534869. The reversal of 20931182534722 is 22743528113902.

It is a super-2 number, since 2×20931182534722² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6404888983 + ... + 6404892250.

It is an arithmetic number, because the mean of its divisors is an integer number (2113613903610).

Almost surely, 2^{20931182534722} is an apocalyptic number.

20931182534722 is a deficient number, since it is larger than the sum of its proper divisors (12886639923038).

20931182534722 is a wasteful number, since it uses less digits than its factorization.

20931182534722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12809781297.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 20931182534722 in words is "twenty trillion, nine hundred thirty-one billion, one hundred eighty-two million, five hundred thirty-four thousand, seven hundred twenty-two".