211122119993 has 2 divisors, whose sum is σ = 211122119994. Its totient is φ = 211122119992.

The previous prime is 211122119981. The next prime is 211122120019. The reversal of 211122119993 is 399911221112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210972106489 + 150013504 = 459317^2 + 12248^2 .

It is a cyclic number.

It is not a de Polignac number, because 211122119993 - 2¹⁰ = 211122118969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211122119993.

It is not a weakly prime, because it can be changed into another prime (211122119903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561059996 + 105561059997.

It is an arithmetic number, because the mean of its divisors is an integer number (105561059997).

Almost surely, 2^211122119993 is an apocalyptic number.

It is an amenable number.

211122119993 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122119993 is an equidigital number, since it uses as much as digits as its factorization.

211122119993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 41.

The spelling of 211122119993 in words is "two hundred eleven billion, one hundred twenty-two million, one hundred nineteen thousand, nine hundred ninety-three".