12212621149 has 2 divisors, whose sum is σ = 12212621150. Its totient is φ = 12212621148.

The previous prime is 12212621147. The next prime is 12212621227. The reversal of 12212621149 is 94112621221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6601562500 + 5611058649 = 81250^2 + 74907^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212621149 - 2¹ = 12212621147 is a prime.

Together with 12212621147, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12212621149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212621147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106310574 + 6106310575.

It is an arithmetic number, because the mean of its divisors is an integer number (6106310575).

Almost surely, 2^12212621149 is an apocalyptic number.

It is an amenable number.

12212621149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212621149 is an equidigital number, since it uses as much as digits as its factorization.

12212621149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The spelling of 12212621149 in words is "twelve billion, two hundred twelve million, six hundred twenty-one thousand, one hundred forty-nine".