221042315113345 has 32 divisors (see below), whose sum is σ = 303508235367936. Its totient is φ = 153085294022400.

The previous prime is 221042315113327. The next prime is 221042315113387. The reversal of 221042315113345 is 543311513240122.

It is not a de Polignac number, because 221042315113345 - 2⁵ = 221042315113313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1155439486 + ... + 1155630775.

It is an arithmetic number, because the mean of its divisors is an integer number (9484632355248).

Almost surely, 2^{221042315113345} is an apocalyptic number.

It is an amenable number.

221042315113345 is a deficient number, since it is larger than the sum of its proper divisors (82465920254591).

221042315113345 is a wasteful number, since it uses less digits than its factorization.

221042315113345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311070361.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 221042315113345 its reverse (543311513240122), we get a palindrome (764353828353467).

The spelling of 221042315113345 in words is "two hundred twenty-one trillion, forty-two billion, three hundred fifteen million, one hundred thirteen thousand, three hundred forty-five".