221412436246736 has 80 divisors (see below), whose sum is σ = 490410926834688. Its totient is φ = 94863848908800.

The previous prime is 221412436246709. The next prime is 221412436246753. The reversal of 221412436246736 is 637642634214122.

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, 6863144846 + ... + 6863177106.

Almost surely, 2^{221412436246736} is an apocalyptic number.

It is an amenable number.

221412436246736 is an abundant number, since it is smaller than the sum of its proper divisors (268998490587952).

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

221412436246736 is a wasteful number, since it uses less digits than its factorization.

221412436246736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47940 (or 47934 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 53.

The spelling of 221412436246736 in words is "two hundred twenty-one trillion, four hundred twelve billion, four hundred thirty-six million, two hundred forty-six thousand, seven hundred thirty-six".