12212464 has 20 divisors (see below), whose sum is σ = 25813080. Its totient is φ = 5551040.

The previous prime is 12212441. The next prime is 12212467. The reversal of 12212464 is 46421221.

It is a happy number.

12212464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34519 + ... + 34870.

It is an arithmetic number, because the mean of its divisors is an integer number (1290654).

Almost surely, 2^12212464 is an apocalyptic number.

It is an amenable number.

12212464 is an abundant number, since it is smaller than the sum of its proper divisors (13600616).

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

12212464 is a wasteful number, since it uses less digits than its factorization.

12212464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69408 (or 69402 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 12212464 is about 3494.6336002505. The cubic root of 12212464 is about 230.2861215460.

Adding to 12212464 its reverse (46421221), we get a palindrome (58633685).

The spelling of 12212464 in words is "twelve million, two hundred twelve thousand, four hundred sixty-four".