211112010997 has 2 divisors, whose sum is σ = 211112010998. Its totient is φ = 211112010996.

The previous prime is 211112010983. The next prime is 211112011021. The reversal of 211112010997 is 799010211112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146127294756 + 64984716241 = 382266^2 + 254921^2 .

It is a cyclic number.

It is not a de Polignac number, because 211112010997 - 2¹⁵ = 211111978229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211112010937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105556005498 + 105556005499.

It is an arithmetic number, because the mean of its divisors is an integer number (105556005499).

Almost surely, 2^211112010997 is an apocalyptic number.

It is an amenable number.

211112010997 is a deficient number, since it is larger than the sum of its proper divisors (1).

211112010997 is an equidigital number, since it uses as much as digits as its factorization.

211112010997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 211112010997 in words is "two hundred eleven billion, one hundred twelve million, ten thousand, nine hundred ninety-seven".