221323079051 has 2 divisors, whose sum is σ = 221323079052. Its totient is φ = 221323079050.

The previous prime is 221323079027. The next prime is 221323079069. The reversal of 221323079051 is 150970323122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221323079051 - 2⁶ = 221323078987 is a prime.

It is not a weakly prime, because it can be changed into another prime (221323079011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110661539525 + 110661539526.

It is an arithmetic number, because the mean of its divisors is an integer number (110661539526).

Almost surely, 2^221323079051 is an apocalyptic number.

221323079051 is a deficient number, since it is larger than the sum of its proper divisors (1).

221323079051 is an equidigital number, since it uses as much as digits as its factorization.

221323079051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 221323079051 in words is "two hundred twenty-one billion, three hundred twenty-three million, seventy-nine thousand, fifty-one".