211222101220069 has 2 divisors, whose sum is σ = 211222101220070. Its totient is φ = 211222101220068.

The previous prime is 211222101220007. The next prime is 211222101220147. The reversal of 211222101220069 is 960022101222112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167720293771969 + 43501807448100 = 12950687^2 + 6595590^2 .

It is a cyclic number.

It is not a de Polignac number, because 211222101220069 - 2⁹ = 211222101219557 is a prime.

It is a super-2 number, since 2×211222101220069² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211222101220069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211222101227069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611050610034 + 105611050610035.

It is an arithmetic number, because the mean of its divisors is an integer number (105611050610035).

Almost surely, 2^{211222101220069} is an apocalyptic number.

It is an amenable number.

211222101220069 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222101220069 is an equidigital number, since it uses as much as digits as its factorization.

211222101220069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 211222101220069 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty thousand, sixty-nine".