12211912332149 has 4 divisors (see below), whose sum is σ = 12219796073100. Its totient is φ = 12204028591200.

The previous prime is 12211912332121. The next prime is 12211912332197. The reversal of 12211912332149 is 94123321911221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3075305859025 + 9136606473124 = 1753655^2 + 3022682^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211912332149 - 2³⁶ = 12143192855413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211912332049) 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, 3941868152 + ... + 3941871249.

It is an arithmetic number, because the mean of its divisors is an integer number (3054949018275).

Almost surely, 2^{12211912332149} is an apocalyptic number.

It is an amenable number.

12211912332149 is a deficient number, since it is larger than the sum of its proper divisors (7883740951).

12211912332149 is an equidigital number, since it uses as much as digits as its factorization.

12211912332149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883740950.

The product of its digits is 46656, while the sum is 41.

The spelling of 12211912332149 in words is "twelve trillion, two hundred eleven billion, nine hundred twelve million, three hundred thirty-two thousand, one hundred forty-nine".