12212013 has 8 divisors (see below), whose sum is σ = 17762976. Its totient is φ = 7401200.

The previous prime is 12211981. The next prime is 12212021. The reversal of 12212013 is 31021221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12212013 - 2⁵ = 12211981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12212013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184998 + ... + 185063.

It is an arithmetic number, because the mean of its divisors is an integer number (2220372).

Almost surely, 2^12212013 is an apocalyptic number.

It is an amenable number.

12212013 is a deficient number, since it is larger than the sum of its proper divisors (5550963).

12212013 is a wasteful number, since it uses less digits than its factorization.

12212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370075.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12212013 is about 3494.5690721461. The cubic root of 12212013 is about 230.2832867285.

Adding to 12212013 its reverse (31021221), we get a palindrome (43233234).

The spelling of 12212013 in words is "twelve million, two hundred twelve thousand, thirteen".