12201139 has 2 divisors, whose sum is σ = 12201140. Its totient is φ = 12201138.

The previous prime is 12201131. The next prime is 12201143. The reversal of 12201139 is 93110221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12201139 - 2³ = 12201131 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100569 + 6100570.

It is an arithmetic number, because the mean of its divisors is an integer number (6100570).

Almost surely, 2^12201139 is an apocalyptic number.

12201139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201139 is an equidigital number, since it uses as much as digits as its factorization.

12201139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12201139 is about 3493.0128828849. The cubic root of 12201139 is about 230.2149156889.

The spelling of 12201139 in words is "twelve million, two hundred one thousand, one hundred thirty-nine".