1222445669 has 2 divisors, whose sum is σ = 1222445670. Its totient is φ = 1222445668.

The previous prime is 1222445629. The next prime is 1222445677. The reversal of 1222445669 is 9665442221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 792422500 + 430023169 = 28150^2 + 20737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222445669 is a prime.

It is a super-2 number, since 2×1222445669² = 2988746827313715122, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222445629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611222834 + 611222835.

It is an arithmetic number, because the mean of its divisors is an integer number (611222835).

Almost surely, 2^1222445669 is an apocalyptic number.

It is an amenable number.

1222445669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222445669 is an equidigital number, since it uses as much as digits as its factorization.

1222445669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 1222445669 is about 34963.4905151073. The cubic root of 1222445669 is about 1069.2432617748.

The spelling of 1222445669 in words is "one billion, two hundred twenty-two million, four hundred forty-five thousand, six hundred sixty-nine".