2212111199257 has 2 divisors, whose sum is σ = 2212111199258. Its totient is φ = 2212111199256.

The previous prime is 2212111199231. The next prime is 2212111199269. The reversal of 2212111199257 is 7529911112122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1793807527561 + 418303671696 = 1339331^2 + 646764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212111199257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2212111199297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106055599628 + 1106055599629.

It is an arithmetic number, because the mean of its divisors is an integer number (1106055599629).

Almost surely, 2^{2212111199257} is an apocalyptic number.

It is an amenable number.

2212111199257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212111199257 is an equidigital number, since it uses as much as digits as its factorization.

2212111199257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 43.

The spelling of 2212111199257 in words is "two trillion, two hundred twelve billion, one hundred eleven million, one hundred ninety-nine thousand, two hundred fifty-seven".