20722796210 has 16 divisors (see below), whose sum is σ = 37303761816. Its totient is φ = 8288512128.

The previous prime is 20722796209. The next prime is 20722796219. The reversal of 20722796210 is 1269722702.

It can be written as a sum of positive squares in 4 ways, for example, as 18134123569 + 2588672641 = 134663^2 + 50879^2 .

It is a super-2 number, since 2×20722796210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20722796219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83732 + ... + 220128.

Almost surely, 2^20722796210 is an apocalyptic number.

20722796210 is a deficient number, since it is larger than the sum of its proper divisors (16580965606).

20722796210 is a wasteful number, since it uses less digits than its factorization.

20722796210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151597.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 20722796210 in words is "twenty billion, seven hundred twenty-two million, seven hundred ninety-six thousand, two hundred ten".