12212951 has 2 divisors, whose sum is σ = 12212952. Its totient is φ = 12212950.

The previous prime is 12212939. The next prime is 12212971. The reversal of 12212951 is 15921221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12212951 - 2⁶ = 12212887 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106475 + 6106476.

It is an arithmetic number, because the mean of its divisors is an integer number (6106476).

Almost surely, 2^12212951 is an apocalyptic number.

12212951 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212951 is an equidigital number, since it uses as much as digits as its factorization.

12212951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 23.

The square root of 12212951 is about 3494.7032778192. The cubic root of 12212951 is about 230.2891825677.

The spelling of 12212951 in words is "twelve million, two hundred twelve thousand, nine hundred fifty-one".