221002101320312 has 64 divisors (see below), whose sum is σ = 450724152412800. Its totient is φ = 100984296908160.

The previous prime is 221002101320291. The next prime is 221002101320347. The reversal of 221002101320312 is 213023101200122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21923114 + ... + 30374777.

It is an arithmetic number, because the mean of its divisors is an integer number (7042564881450).

Almost surely, 2^{221002101320312} is an apocalyptic number.

It is an amenable number.

221002101320312 is an abundant number, since it is smaller than the sum of its proper divisors (229722051092488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221002101320312 is a wasteful number, since it uses less digits than its factorization.

221002101320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52298316 (or 52298312 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221002101320312 its reverse (213023101200122), we get a palindrome (434025202520434).

The spelling of 221002101320312 in words is "two hundred twenty-one trillion, two billion, one hundred one million, three hundred twenty thousand, three hundred twelve".