12212706 has 32 divisors (see below), whose sum is σ = 28051200. Its totient is φ = 3505680.

The previous prime is 12212699. The next prime is 12212713. The reversal of 12212706 is 60721221.

It is an interprime number because it is at equal distance from previous prime (12212699) and next prime (12212713).

It is a super-3 number, since 3×12212706³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3616 + ... + 6123.

It is an arithmetic number, because the mean of its divisors is an integer number (876600).

Almost surely, 2^12212706 is an apocalyptic number.

12212706 is an abundant number, since it is smaller than the sum of its proper divisors (15838494).

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

12212706 is a wasteful number, since it uses less digits than its factorization.

12212706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9774.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12212706 is about 3494.6682245959. The cubic root of 12212706 is about 230.2876426388.

Adding to 12212706 its reverse (60721221), we get a palindrome (72933927).

The spelling of 12212706 in words is "twelve million, two hundred twelve thousand, seven hundred six".