12222120210 has 32 divisors (see below), whose sum is σ = 29416210560. Its totient is φ = 3249996288.

The previous prime is 12222120149. The next prime is 12222120223. The reversal of 12222120210 is 1202122221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12222120210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566470 + ... + 587649.

It is an arithmetic number, because the mean of its divisors is an integer number (919256580).

Almost surely, 2^12222120210 is an apocalyptic number.

12222120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222120210 is an abundant number, since it is smaller than the sum of its proper divisors (17194090350).

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

12222120210 is a wasteful number, since it uses less digits than its factorization.

12222120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154482.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12222120210 its reverse (1202122221), we get a palindrome (13424242431).

The spelling of 12222120210 in words is "twelve billion, two hundred twenty-two million, one hundred twenty thousand, two hundred ten".