221002321108 has 12 divisors (see below), whose sum is σ = 392201302752. Its totient is φ = 108944806040.

The previous prime is 221002321091. The next prime is 221002321117. The reversal of 221002321108 is 801123200122.

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, 389088310 + ... + 389088877.

It is an arithmetic number, because the mean of its divisors is an integer number (32683441896).

Almost surely, 2^221002321108 is an apocalyptic number.

It is an amenable number.

221002321108 is a deficient number, since it is larger than the sum of its proper divisors (171198981644).

221002321108 is a wasteful number, since it uses less digits than its factorization.

221002321108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778177262 (or 778177260 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The spelling of 221002321108 in words is "two hundred twenty-one billion, two million, three hundred twenty-one thousand, one hundred eight".