221989405112 has 32 divisors (see below), whose sum is σ = 429761781120. Its totient is φ = 107388011520.

The previous prime is 221989405111. The next prime is 221989405147. The reversal of 221989405112 is 211504989122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221989405111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928748 + ... + 1143044.

It is an arithmetic number, because the mean of its divisors is an integer number (13430055660).

Almost surely, 2^221989405112 is an apocalyptic number.

It is an amenable number.

221989405112 is a deficient number, since it is larger than the sum of its proper divisors (207772376008).

221989405112 is a wasteful number, since it uses less digits than its factorization.

221989405112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218511 (or 218507 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 221989405112 in words is "two hundred twenty-one billion, nine hundred eighty-nine million, four hundred five thousand, one hundred twelve".