22072696820 has 54 divisors (see below), whose sum is σ = 46884701682. Its totient is φ = 8728884192.

The previous prime is 22072696813. The next prime is 22072696831. The reversal of 22072696820 is 2869627022.

It can be written as a sum of positive squares in only one way, i.e., 17658157456 + 4414539364 = 132884^2 + 66442^2 .

It is a super-2 number, since 2×22072696820² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 92354261 + ... + 92354499.

Almost surely, 2^22072696820 is an apocalyptic number.

22072696820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22072696820 is an abundant number, since it is smaller than the sum of its proper divisors (24812004862).

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

22072696820 is an equidigital number, since it uses as much as digits as its factorization.

22072696820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 22072696820 in words is "twenty-two billion, seventy-two million, six hundred ninety-six thousand, eight hundred twenty".