212022795869 has 2 divisors, whose sum is σ = 212022795870. Its totient is φ = 212022795868.

The previous prime is 212022795833. The next prime is 212022795877. The reversal of 212022795869 is 968597220212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210899540644 + 1123255225 = 459238^2 + 33515^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022795869 - 2³² = 207727828573 is a prime.

It is a super-2 number, since 2×212022795869² (a number of 23 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 212022795869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212022795769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011397934 + 106011397935.

It is an arithmetic number, because the mean of its divisors is an integer number (106011397935).

Almost surely, 2^212022795869 is an apocalyptic number.

It is an amenable number.

212022795869 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022795869 is an equidigital number, since it uses as much as digits as its factorization.

212022795869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 212022795869 in words is "two hundred twelve billion, twenty-two million, seven hundred ninety-five thousand, eight hundred sixty-nine".