212102003815057 has 2 divisors, whose sum is σ = 212102003815058. Its totient is φ = 212102003815056.

The previous prime is 212102003815033. The next prime is 212102003815063. The reversal of 212102003815057 is 750518300201212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137309274153216 + 74792729661841 = 11717904^2 + 8648279^2 .

It is a cyclic number.

It is not a de Polignac number, because 212102003815057 - 2³¹ = 212099856331409 is a prime.

It is not a weakly prime, because it can be changed into another prime (212102003815027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051001907528 + 106051001907529.

It is an arithmetic number, because the mean of its divisors is an integer number (106051001907529).

Almost surely, 2^{212102003815057} is an apocalyptic number.

It is an amenable number.

212102003815057 is a deficient number, since it is larger than the sum of its proper divisors (1).

212102003815057 is an equidigital number, since it uses as much as digits as its factorization.

212102003815057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 212102003815057 in words is "two hundred twelve trillion, one hundred two billion, three million, eight hundred fifteen thousand, fifty-seven".