20218870038722 has 16 divisors (see below), whose sum is σ = 30371016303360. Its totient is φ = 10095198429792.

The previous prime is 20218870038707. The next prime is 20218870038733. The reversal of 20218870038722 is 22783007881202.

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, 131058443 + ... + 131212625.

It is an arithmetic number, because the mean of its divisors is an integer number (1898188518960).

Almost surely, 2^{20218870038722} is an apocalyptic number.

20218870038722 is a deficient number, since it is larger than the sum of its proper divisors (10152146264638).

20218870038722 is a wasteful number, since it uses less digits than its factorization.

20218870038722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246097.

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 20218870038722 in words is "twenty trillion, two hundred eighteen billion, eight hundred seventy million, thirty-eight thousand, seven hundred twenty-two".