221457532474 has 8 divisors (see below), whose sum is σ = 332197954848. Its totient is φ = 110724880860.

The previous prime is 221457532459. The next prime is 221457532507. The reversal of 221457532474 is 474235754122.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870912 + ... + 1985755.

It is an arithmetic number, because the mean of its divisors is an integer number (41524744356).

Almost surely, 2^221457532474 is an apocalyptic number.

221457532474 is a deficient number, since it is larger than the sum of its proper divisors (110740422374).

221457532474 is a wasteful number, since it uses less digits than its factorization.

221457532474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885380.

The product of its digits is 1881600, while the sum is 46.

The spelling of 221457532474 in words is "two hundred twenty-one billion, four hundred fifty-seven million, five hundred thirty-two thousand, four hundred seventy-four".