221534456107152 has 80 divisors (see below), whose sum is σ = 599503495927680. Its totient is φ = 70359333175296.

The previous prime is 221534456107121. The next prime is 221534456107169. The reversal of 221534456107152 is 251701654435122.

It is a super-2 number, since 2×221534456107152² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 390115627 + ... + 390683082.

It is an arithmetic number, because the mean of its divisors is an integer number (7493793699096).

Almost surely, 2^{221534456107152} is an apocalyptic number.

It is an amenable number.

221534456107152 is an abundant number, since it is smaller than the sum of its proper divisors (377969039820528).

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

221534456107152 is a wasteful number, since it uses less digits than its factorization.

221534456107152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780799000 (or 780798994 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 221534456107152 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred fifty-six million, one hundred seven thousand, one hundred fifty-two".