211022120069 has 2 divisors, whose sum is σ = 211022120070. Its totient is φ = 211022120068.

The previous prime is 211022120059. The next prime is 211022120107. The reversal of 211022120069 is 960021220112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211013447044 + 8673025 = 459362^2 + 2945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211022120069 is a prime.

It is a super-2 number, since 2×211022120069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211022120039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105511060034 + 105511060035.

It is an arithmetic number, because the mean of its divisors is an integer number (105511060035).

Almost surely, 2^211022120069 is an apocalyptic number.

It is an amenable number.

211022120069 is a deficient number, since it is larger than the sum of its proper divisors (1).

211022120069 is an equidigital number, since it uses as much as digits as its factorization.

211022120069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 211022120069 in words is "two hundred eleven billion, twenty-two million, one hundred twenty thousand, sixty-nine".