12212434 has 16 divisors (see below), whose sum is σ = 19819800. Its totient is φ = 5610240.

The previous prime is 12212429. The next prime is 12212441. The reversal of 12212434 is 43421221.

12212434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11202409 + 1010025 = 3347^2 + 1005^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5292 + ... + 7240.

Almost surely, 2^12212434 is an apocalyptic number.

12212434 is a deficient number, since it is larger than the sum of its proper divisors (7607366).

12212434 is a wasteful number, since it uses less digits than its factorization.

12212434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205.

The product of its digits is 384, while the sum is 19.

The square root of 12212434 is about 3494.6293079524. The cubic root of 12212434 is about 230.2859329794.

Adding to 12212434 its reverse (43421221), we get a palindrome (55633655).

It can be divided in two parts, 1221 and 2434, that added together give a triangular number (3655 = T₈₅).

The spelling of 12212434 in words is "twelve million, two hundred twelve thousand, four hundred thirty-four".