20216612204 has 12 divisors (see below), whose sum is σ = 35649141528. Its totient is φ = 10031143200.

The previous prime is 20216612191. The next prime is 20216612231. The reversal of 20216612204 is 40221661202.

It is a super-2 number, since 2×20216612204² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19290137 + ... + 19291184.

It is an arithmetic number, because the mean of its divisors is an integer number (2970761794).

Almost surely, 2^20216612204 is an apocalyptic number.

It is an amenable number.

20216612204 is a deficient number, since it is larger than the sum of its proper divisors (15432529324).

20216612204 is a wasteful number, since it uses less digits than its factorization.

20216612204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38581456 (or 38581454 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 20216612204 in words is "twenty billion, two hundred sixteen million, six hundred twelve thousand, two hundred four".