212130111002291 has 2 divisors, whose sum is σ = 212130111002292. Its totient is φ = 212130111002290.

The previous prime is 212130111002273. The next prime is 212130111002321. The reversal of 212130111002291 is 192200111031212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212130111002291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212130111002291.

It is not a weakly prime, because it can be changed into another prime (212130111002261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106065055501145 + 106065055501146.

It is an arithmetic number, because the mean of its divisors is an integer number (106065055501146).

Almost surely, 2^{212130111002291} is an apocalyptic number.

212130111002291 is a deficient number, since it is larger than the sum of its proper divisors (1).

212130111002291 is an equidigital number, since it uses as much as digits as its factorization.

212130111002291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 212130111002291 in words is "two hundred twelve trillion, one hundred thirty billion, one hundred eleven million, two thousand, two hundred ninety-one".