221210044112 has 40 divisors (see below), whose sum is σ = 453978818496. Its totient is φ = 104059178496.

The previous prime is 221210044103. The next prime is 221210044169. The reversal of 221210044112 is 211440012122.

It is a congruent number.

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, 566363 + ... + 873605.

Almost surely, 2^221210044112 is an apocalyptic number.

It is an amenable number.

221210044112 is an abundant number, since it is smaller than the sum of its proper divisors (232768774384).

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

221210044112 is a wasteful number, since it uses less digits than its factorization.

221210044112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309915 (or 309909 counting only the distinct ones).

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

Adding to 221210044112 its reverse (211440012122), we get a palindrome (432650056234).

The spelling of 221210044112 in words is "two hundred twenty-one billion, two hundred ten million, forty-four thousand, one hundred twelve".