12202139 has 2 divisors, whose sum is σ = 12202140. Its totient is φ = 12202138.

The previous prime is 12202129. The next prime is 12202171. The reversal of 12202139 is 93120221.

12202139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12202139 - 2²⁰ = 11153563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12202139.

It is not a weakly prime, because it can be changed into another prime (12202129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101069 + 6101070.

It is an arithmetic number, because the mean of its divisors is an integer number (6101070).

Almost surely, 2^12202139 is an apocalyptic number.

12202139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202139 is an equidigital number, since it uses as much as digits as its factorization.

12202139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12202139 is about 3493.1560228538. The cubic root of 12202139 is about 230.2212049549.

The spelling of 12202139 in words is "twelve million, two hundred two thousand, one hundred thirty-nine".