12212051 has 2 divisors, whose sum is σ = 12212052. Its totient is φ = 12212050.

The previous prime is 12212029. The next prime is 12212059. The reversal of 12212051 is 15021221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212051 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12212059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106025 + 6106026.

It is an arithmetic number, because the mean of its divisors is an integer number (6106026).

Almost surely, 2^12212051 is an apocalyptic number.

12212051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212051 is an equidigital number, since it uses as much as digits as its factorization.

12212051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12212051 is about 3494.5745091499. The cubic root of 12212051 is about 230.2835255850.

Adding to 12212051 its reverse (15021221), we get a palindrome (27233272).

The spelling of 12212051 in words is "twelve million, two hundred twelve thousand, fifty-one".