221516622013 has 8 divisors (see below), whose sum is σ = 228508464800. Its totient is φ = 214633180080.

The previous prime is 221516621969. The next prime is 221516622031. The reversal of 221516622013 is 310226615122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221516622013 - 2²⁹ = 220979751101 is a prime.

It is a super-2 number, since 2×221516622013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221516622053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27096063 + ... + 27104236.

It is an arithmetic number, because the mean of its divisors is an integer number (28563558100).

Almost surely, 2^221516622013 is an apocalyptic number.

It is an amenable number.

221516622013 is a deficient number, since it is larger than the sum of its proper divisors (6991842787).

221516622013 is an equidigital number, since it uses as much as digits as its factorization.

221516622013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54200427.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 221516622013 in words is "two hundred twenty-one billion, five hundred sixteen million, six hundred twenty-two thousand, thirteen".