221002220212112 has 80 divisors (see below), whose sum is σ = 437687336217600. Its totient is φ = 108071385477120.

The previous prime is 221002220212069. The next prime is 221002220212133. The reversal of 221002220212112 is 211212022200122.

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, 1867002464 + ... + 1867120832.

It is an arithmetic number, because the mean of its divisors is an integer number (5471091702720).

Almost surely, 2^{221002220212112} is an apocalyptic number.

It is an amenable number.

221002220212112 is a deficient number, since it is larger than the sum of its proper divisors (216685116005488).

221002220212112 is a wasteful number, since it uses less digits than its factorization.

221002220212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129304 (or 129298 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221002220212112 its reverse (211212022200122), we get a palindrome (432214242412234).

The spelling of 221002220212112 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, two hundred twelve thousand, one hundred twelve".