211211797033 has 2 divisors, whose sum is σ = 211211797034. Its totient is φ = 211211797032.

The previous prime is 211211796959. The next prime is 211211797061. The reversal of 211211797033 is 330797112112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185901532569 + 25310264464 = 431163^2 + 159092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211211797033 is a prime.

It is a super-2 number, since 2×211211797033² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211796983 and 211211797001.

It is not a weakly prime, because it can be changed into another prime (211211797063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605898516 + 105605898517.

It is an arithmetic number, because the mean of its divisors is an integer number (105605898517).

Almost surely, 2^211211797033 is an apocalyptic number.

It is an amenable number.

211211797033 is a deficient number, since it is larger than the sum of its proper divisors (1).

211211797033 is an equidigital number, since it uses as much as digits as its factorization.

211211797033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The spelling of 211211797033 in words is "two hundred eleven billion, two hundred eleven million, seven hundred ninety-seven thousand, thirty-three".