221412501024572 has 48 divisors (see below), whose sum is σ = 465798034407552. Its totient is φ = 90739876812480.

The previous prime is 221412501024553. The next prime is 221412501024623. The reversal of 221412501024572 is 275420105214122.

It is a congruent number.

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, 4500961358 + ... + 4501010549.

It is an arithmetic number, because the mean of its divisors is an integer number (9704125716824).

Almost surely, 2^{221412501024572} is an apocalyptic number.

221412501024572 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221412501024572 is an abundant number, since it is smaller than the sum of its proper divisors (244385533382980).

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

221412501024572 is a wasteful number, since it uses less digits than its factorization.

221412501024572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9001971978 (or 9001971976 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 38.

Adding to 221412501024572 its reverse (275420105214122), we get a palindrome (496832606238694).

The spelling of 221412501024572 in words is "two hundred twenty-one trillion, four hundred twelve billion, five hundred one million, twenty-four thousand, five hundred seventy-two".