12222122001222 has 32 divisors (see below), whose sum is σ = 27936976741632. Its totient is φ = 3491947622304.

The previous prime is 12222122001203. The next prime is 12222122001277. The reversal of 12222122001222 is 22210022122221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 1924048 + ... + 5305299.

It is an arithmetic number, because the mean of its divisors is an integer number (873030523176).

Almost surely, 2^{12222122001222} is an apocalyptic number.

12222122001222 is an abundant number, since it is smaller than the sum of its proper divisors (15714854740410).

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

12222122001222 is a wasteful number, since it uses less digits than its factorization.

12222122001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7269612.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12222122001222 its reverse (22210022122221), we get a palindrome (34432144123443).

The spelling of 12222122001222 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-two million, one thousand, two hundred twenty-two".