200021010179 has 2 divisors, whose sum is σ = 200021010180. Its totient is φ = 200021010178.

The previous prime is 200021010149. The next prime is 200021010199. The reversal of 200021010179 is 971010120002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200021010179 - 2¹² = 200021006083 is a prime.

It is a super-2 number, since 2×200021010179² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (200021010109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010505089 + 100010505090.

It is an arithmetic number, because the mean of its divisors is an integer number (100010505090).

Almost surely, 2^200021010179 is an apocalyptic number.

200021010179 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021010179 is an equidigital number, since it uses as much as digits as its factorization.

200021010179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 200021010179 in words is "two hundred billion, twenty-one million, ten thousand, one hundred seventy-nine".