12120002099957 has 2 divisors, whose sum is σ = 12120002099958. Its totient is φ = 12120002099956.

The previous prime is 12120002099939. The next prime is 12120002100083. The reversal of 12120002099957 is 75999020002121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8870235150436 + 3249766949521 = 2978294^2 + 1802711^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120002099957 - 2⁸ = 12120002099701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120002090957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060001049978 + 6060001049979.

It is an arithmetic number, because the mean of its divisors is an integer number (6060001049979).

Almost surely, 2^{12120002099957} is an apocalyptic number.

It is an amenable number.

12120002099957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120002099957 is an equidigital number, since it uses as much as digits as its factorization.

12120002099957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 12120002099957 in words is "twelve trillion, one hundred twenty billion, two million, ninety-nine thousand, nine hundred fifty-seven".