12002212222 has 128 divisors (see below), whose sum is σ = 25341216768. Its totient is φ = 4109529600.

The previous prime is 12002212169. The next prime is 12002212231. The reversal of 12002212222 is 22221220021.

It is a junction number, because it is equal to n+sod(n) for n = 12002212196 and 12002212205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12754272 + ... + 12755212.

It is an arithmetic number, because the mean of its divisors is an integer number (197978256).

Almost surely, 2^12002212222 is an apocalyptic number.

12002212222 is an abundant number, since it is smaller than the sum of its proper divisors (13339004546).

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

12002212222 is a wasteful number, since it uses less digits than its factorization.

12002212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12002212222 its reverse (22221220021), we get a palindrome (34223432243).

The spelling of 12002212222 in words is "twelve billion, two million, two hundred twelve thousand, two hundred twenty-two".