211122018022969 has 2 divisors, whose sum is σ = 211122018022970. Its totient is φ = 211122018022968.

The previous prime is 211122018022967. The next prime is 211122018022973. The reversal of 211122018022969 is 969220810221112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206763923386944 + 4358094636025 = 14379288^2 + 2087605^2 .

It is a cyclic number.

It is not a de Polignac number, because 211122018022969 - 2¹ = 211122018022967 is a prime.

It is a super-2 number, since 2×211122018022969² (a number of 29 digits) contains 22 as substring.

Together with 211122018022967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (211122018022967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561009011484 + 105561009011485.

It is an arithmetic number, because the mean of its divisors is an integer number (105561009011485).

Almost surely, 2^{211122018022969} is an apocalyptic number.

It is an amenable number.

211122018022969 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122018022969 is an equidigital number, since it uses as much as digits as its factorization.

211122018022969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 211122018022969 in words is "two hundred eleven trillion, one hundred twenty-two billion, eighteen million, twenty-two thousand, nine hundred sixty-nine".