221445121544122 has 80 divisors (see below), whose sum is σ = 397159190865792. Its totient is φ = 92555214722880.

The previous prime is 221445121544117. The next prime is 221445121544201.

221445121544122 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 61674153 + ... + 65165875.

Almost surely, 2^{221445121544122} is an apocalyptic number.

221445121544122 is a deficient number, since it is larger than the sum of its proper divisors (175714069321670).

221445121544122 is an equidigital number, since it uses as much as digits as its factorization.

221445121544122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492081 (or 3492060 counting only the distinct ones).

The product of its digits is 204800, while the sum is 40.

The spelling of 221445121544122 in words is "two hundred twenty-one trillion, four hundred forty-five billion, one hundred twenty-one million, five hundred forty-four thousand, one hundred twenty-two".