221256133484 has 48 divisors (see below), whose sum is σ = 400105681920. Its totient is φ = 107005080000.

The previous prime is 221256133459. The next prime is 221256133507. The reversal of 221256133484 is 484331652122.

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, 8415359 + ... + 8441609.

It is an arithmetic number, because the mean of its divisors is an integer number (8335535040).

Almost surely, 2^221256133484 is an apocalyptic number.

It is an amenable number.

221256133484 is a deficient number, since it is larger than the sum of its proper divisors (178849548436).

221256133484 is a wasteful number, since it uses less digits than its factorization.

221256133484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26870 (or 26868 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The spelling of 221256133484 in words is "two hundred twenty-one billion, two hundred fifty-six million, one hundred thirty-three thousand, four hundred eighty-four".