210112221222 has 24 divisors (see below), whose sum is σ = 459750507840. Its totient is φ = 69343966800.

The previous prime is 210112221169. The next prime is 210112221269. The reversal of 210112221222 is 222122211012.

It is a happy number.

210112221222 is a `hidden beast` number, since 210 + 1 + 12 + 221 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 210112221195 and 210112221204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57784822 + ... + 57788457.

It is an arithmetic number, because the mean of its divisors is an integer number (19156271160).

Almost surely, 2^210112221222 is an apocalyptic number.

210112221222 is an abundant number, since it is smaller than the sum of its proper divisors (249638286618).

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

210112221222 is a wasteful number, since it uses less digits than its factorization.

210112221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115573388 (or 115573385 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210112221222 its reverse (222122211012), we get a palindrome (432234432234).

The spelling of 210112221222 in words is "two hundred ten billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".