221002220211008 has 28 divisors (see below), whose sum is σ = 438561463060740. Its totient is φ = 110498544479232.

The previous prime is 221002220210939. The next prime is 221002220211011. The reversal of 221002220211008 is 800112022200122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 109128275816704 + 111873944394304 = 10446448^2 + 10577048^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37308413 + ... + 42824316.

Almost surely, 2^{221002220211008} is an apocalyptic number.

It is an amenable number.

221002220211008 is a deficient number, since it is larger than the sum of its proper divisors (217559242849732).

221002220211008 is an equidigital number, since it uses as much as digits as its factorization.

221002220211008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80175834 (or 80175824 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The spelling of 221002220211008 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, two hundred eleven thousand, eight".