221010211112 has 32 divisors (see below), whose sum is σ = 419491758600. Its totient is φ = 109150944000.

The previous prime is 221010211031. The next prime is 221010211139. The reversal of 221010211112 is 211112010122.

It can be written as a sum of positive squares in 4 ways, for example, as 215933078596 + 5077132516 = 464686^2 + 71254^2 .

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, 15314 + ... + 665022.

Almost surely, 2^221010211112 is an apocalyptic number.

It is an amenable number.

221010211112 is a deficient number, since it is larger than the sum of its proper divisors (198481547488).

221010211112 is a wasteful number, since it uses less digits than its factorization.

221010211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650237 (or 650233 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221010211112 its reverse (211112010122), we get a palindrome (432122221234).

The spelling of 221010211112 in words is "two hundred twenty-one billion, ten million, two hundred eleven thousand, one hundred twelve".