221361314233016 has 8 divisors (see below), whose sum is σ = 415052464186920. Its totient is φ = 110680657116504.

The previous prime is 221361314232977. The next prime is 221361314233133. The reversal of 221361314233016 is 610332413163122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13835082139556 + ... + 13835082139571.

It is an arithmetic number, because the mean of its divisors is an integer number (51881558023365).

Almost surely, 2^{221361314233016} is an apocalyptic number.

It is an amenable number.

221361314233016 is a deficient number, since it is larger than the sum of its proper divisors (193691149953904).

221361314233016 is a wasteful number, since it uses less digits than its factorization.

221361314233016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27670164279133 (or 27670164279129 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

Adding to 221361314233016 its reverse (610332413163122), we get a palindrome (831693727396138).

The spelling of 221361314233016 in words is "two hundred twenty-one trillion, three hundred sixty-one billion, three hundred fourteen million, two hundred thirty-three thousand, sixteen".