12222222210 has 96 divisors (see below), whose sum is σ = 35603710272. Its totient is φ = 2882874240.

The previous prime is 12222222197. The next prime is 12222222253. The reversal of 12222222210 is 1222222221.

12222222210 is a `hidden beast` number, since 1 + 222 + 222 + 221 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130204 + ... + 203463.

It is an arithmetic number, because the mean of its divisors is an integer number (370871982).

Almost surely, 2^12222222210 is an apocalyptic number.

12222222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222222210 is an abundant number, since it is smaller than the sum of its proper divisors (23381488062).

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

12222222210 is a wasteful number, since it uses less digits than its factorization.

12222222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333728 (or 333725 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12222222210 its reverse (1222222221), we get a palindrome (13444444431).

It can be divided in two parts, 12222 and 222210, that added together give a palindrome (234432).

The spelling of 12222222210 in words is "twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred ten".