1222895669 has 4 divisors (see below), whose sum is σ = 1223322144. Its totient is φ = 1222469196.

The previous prime is 1222895599. The next prime is 1222895683. The reversal of 1222895669 is 9665982221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9665982221 = 7 ⋅1380854603.

It is a cyclic number.

It is not a de Polignac number, because 1222895669 - 2²⁰ = 1221847093 is a prime.

It is a super-2 number, since 2×1222895669² = 2990947634517915122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222894669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208907 + ... + 214680.

It is an arithmetic number, because the mean of its divisors is an integer number (305830536).

Almost surely, 2^1222895669 is an apocalyptic number.

It is an amenable number.

1222895669 is a deficient number, since it is larger than the sum of its proper divisors (426475).

1222895669 is an equidigital number, since it uses as much as digits as its factorization.

1222895669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426474.

The product of its digits is 933120, while the sum is 50.

The square root of 1222895669 is about 34969.9252072406. The cubic root of 1222895669 is about 1069.3744470023.

The spelling of 1222895669 in words is "one billion, two hundred twenty-two million, eight hundred ninety-five thousand, six hundred sixty-nine".