12212927 has 4 divisors (see below), whose sum is σ = 12321120. Its totient is φ = 12104736.

The previous prime is 12212917. The next prime is 12212929. The reversal of 12212927 is 72921221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12212927 - 2¹² = 12208831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212896 and 12212905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212929) 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, 53927 + ... + 54152.

It is an arithmetic number, because the mean of its divisors is an integer number (3080280).

Almost surely, 2^12212927 is an apocalyptic number.

12212927 is a deficient number, since it is larger than the sum of its proper divisors (108193).

12212927 is a wasteful number, since it uses less digits than its factorization.

12212927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108192.

The product of its digits is 1008, while the sum is 26.

The square root of 12212927 is about 3494.6998440496. The cubic root of 12212927 is about 230.2890317184.

The spelling of 12212927 in words is "twelve million, two hundred twelve thousand, nine hundred twenty-seven".