212022795769 has 2 divisors, whose sum is σ = 212022795770. Its totient is φ = 212022795768.

The previous prime is 212022795763. The next prime is 212022795797. The reversal of 212022795769 is 967597220212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193677447744 + 18345348025 = 440088^2 + 135445^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022795769 - 2¹⁷ = 212022664697 is a prime.

It is a super-2 number, since 2×212022795769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212022795763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011397884 + 106011397885.

It is an arithmetic number, because the mean of its divisors is an integer number (106011397885).

Almost surely, 2^212022795769 is an apocalyptic number.

It is an amenable number.

212022795769 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022795769 is an equidigital number, since it uses as much as digits as its factorization.

212022795769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 212022795769 in words is "two hundred twelve billion, twenty-two million, seven hundred ninety-five thousand, seven hundred sixty-nine".