221988703044 has 24 divisors (see below), whose sum is σ = 518116160128. Its totient is φ = 73975874400.

The previous prime is 221988703009. The next prime is 221988703093. The reversal of 221988703044 is 440307889122.

It is a junction number, because it is equal to n+sod(n) for n = 221988702984 and 221988703002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2499532 + ... + 2586819.

Almost surely, 2^221988703044 is an apocalyptic number.

It is an amenable number.

221988703044 is an abundant number, since it is smaller than the sum of its proper divisors (296127457084).

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

221988703044 is a wasteful number, since it uses less digits than its factorization.

221988703044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089995 (or 5089993 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 221988703044 in words is "two hundred twenty-one billion, nine hundred eighty-eight million, seven hundred three thousand, forty-four".