221293713412 has 12 divisors (see below), whose sum is σ = 407646314320. Its totient is φ = 104823337896.

The previous prime is 221293713379. The next prime is 221293713413. The reversal of 221293713412 is 214317392122.

It is not an unprimeable number, because it can be changed into a prime (221293713413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455879618 + ... + 1455879769.

Almost surely, 2^221293713412 is an apocalyptic number.

It is an amenable number.

221293713412 is a deficient number, since it is larger than the sum of its proper divisors (186352600908).

221293713412 is a wasteful number, since it uses less digits than its factorization.

221293713412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911759410 (or 2911759408 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The spelling of 221293713412 in words is "two hundred twenty-one billion, two hundred ninety-three million, seven hundred thirteen thousand, four hundred twelve".