12212992 has 36 divisors (see below), whose sum is σ = 26600616. Its totient is φ = 5550080.

The previous prime is 12212983. The next prime is 12213001. The reversal of 12212992 is 29921221.

It is an interprime number because it is at equal distance from previous prime (12212983) and next prime (12213001).

It is a self number, because there is not a number n which added to its sum of digits gives 12212992.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648 + ... + 4984.

It is an arithmetic number, because the mean of its divisors is an integer number (738906).

Almost surely, 2^12212992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13300308).

12212992 is an abundant number, since it is smaller than the sum of its proper divisors (14387624).

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

12212992 is an equidigital number, since it uses as much as digits as its factorization.

12212992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 4350 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 12212992 is about 3494.7091438344. The cubic root of 12212992 is about 230.2894402681.

It can be divided in two parts, 122129 and 92, that added together give a palindrome (122221).

The spelling of 12212992 in words is "twelve million, two hundred twelve thousand, nine hundred ninety-two".