122209669 has 2 divisors, whose sum is σ = 122209670. Its totient is φ = 122209668.

The previous prime is 122209559. The next prime is 122209693. The reversal of 122209669 is 966902221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68260644 + 53949025 = 8262^2 + 7345^2 .

It is a cyclic number.

It is not a de Polignac number, because 122209669 - 2¹⁹ = 121685381 is a prime.

It is a super-2 number, since 2×122209669² = 29870406394179122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122209369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61104834 + 61104835.

It is an arithmetic number, because the mean of its divisors is an integer number (61104835).

Almost surely, 2^122209669 is an apocalyptic number.

It is an amenable number.

122209669 is a deficient number, since it is larger than the sum of its proper divisors (1).

122209669 is an equidigital number, since it uses as much as digits as its factorization.

122209669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 122209669 is about 11054.8482124360. The cubic root of 122209669 is about 496.2515267905.

The spelling of 122209669 in words is "one hundred twenty-two million, two hundred nine thousand, six hundred sixty-nine".