12201222139 has 2 divisors, whose sum is σ = 12201222140. Its totient is φ = 12201222138.

The previous prime is 12201222073. The next prime is 12201222149. The reversal of 12201222139 is 93122210221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12201222139 - 2³¹ = 10053738491 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201222149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100611069 + 6100611070.

It is an arithmetic number, because the mean of its divisors is an integer number (6100611070).

Almost surely, 2^12201222139 is an apocalyptic number.

12201222139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201222139 is an equidigital number, since it uses as much as digits as its factorization.

12201222139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 12201222139 in words is "twelve billion, two hundred one million, two hundred twenty-two thousand, one hundred thirty-nine".