211020222122069 has 2 divisors, whose sum is σ = 211020222122070. Its totient is φ = 211020222122068.

The previous prime is 211020222121963. The next prime is 211020222122131. The reversal of 211020222122069 is 960221222020112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202011159841969 + 9009062280100 = 14213063^2 + 3001510^2 .

It is a cyclic number.

It is not a de Polignac number, because 211020222122069 - 2²⁴ = 211020205344853 is a prime.

It is a super-2 number, since 2×211020222122069² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211020222121069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510111061034 + 105510111061035.

It is an arithmetic number, because the mean of its divisors is an integer number (105510111061035).

Almost surely, 2^{211020222122069} is an apocalyptic number.

It is an amenable number.

211020222122069 is a deficient number, since it is larger than the sum of its proper divisors (1).

211020222122069 is an equidigital number, since it uses as much as digits as its factorization.

211020222122069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 211020222122069 in words is "two hundred eleven trillion, twenty billion, two hundred twenty-two million, one hundred twenty-two thousand, sixty-nine".