221010222112 has 24 divisors (see below), whose sum is σ = 442488690000. Its totient is φ = 108632142144.

The previous prime is 221010222109. The next prime is 221010222113. The reversal of 221010222112 is 211222010122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (221010222113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58528362 + ... + 58532137.

It is an arithmetic number, because the mean of its divisors is an integer number (18437028750).

Almost surely, 2^221010222112 is an apocalyptic number.

It is an amenable number.

221010222112 is an abundant number, since it is smaller than the sum of its proper divisors (221478467888).

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

221010222112 is a wasteful number, since it uses less digits than its factorization.

221010222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117060568 (or 117060560 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221010222112 its reverse (211222010122), we get a palindrome (432232232234).

The spelling of 221010222112 in words is "two hundred twenty-one billion, ten million, two hundred twenty-two thousand, one hundred twelve".