120212999957 has 2 divisors, whose sum is σ = 120212999958. Its totient is φ = 120212999956.

The previous prime is 120212999939. The next prime is 120213000029. The reversal of 120212999957 is 759999212021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115606120081 + 4606879876 = 340009^2 + 67874^2 .

It is a cyclic number.

It is not a de Polignac number, because 120212999957 - 2⁸ = 120212999701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120212999057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106499978 + 60106499979.

It is an arithmetic number, because the mean of its divisors is an integer number (60106499979).

Almost surely, 2^120212999957 is an apocalyptic number.

It is an amenable number.

120212999957 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212999957 is an equidigital number, since it uses as much as digits as its factorization.

120212999957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 56.

The spelling of 120212999957 in words is "one hundred twenty billion, two hundred twelve million, nine hundred ninety-nine thousand, nine hundred fifty-seven".