1222345669 has 16 divisors (see below), whose sum is σ = 1270730160. Its totient is φ = 1174947840.

The previous prime is 1222345661. The next prime is 1222345681. The reversal of 1222345669 is 9665432221.

It can be written as a sum of positive squares in 8 ways, for example, as 6916900 + 1215428769 = 2630^2 + 34863^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222345669 - 2³ = 1222345661 is a prime.

It is a super-2 number, since 2×1222345669² = 2988257869046115122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222345661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1667227 + ... + 1667959.

It is an arithmetic number, because the mean of its divisors is an integer number (79420635).

Almost surely, 2^1222345669 is an apocalyptic number.

It is an amenable number.

1222345669 is a deficient number, since it is larger than the sum of its proper divisors (48384491).

1222345669 is an equidigital number, since it uses as much as digits as its factorization.

1222345669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320.

The product of its digits is 155520, while the sum is 40.

The square root of 1222345669 is about 34962.0604226925. The cubic root of 1222345669 is about 1069.2141051302.

The spelling of 1222345669 in words is "one billion, two hundred twenty-two million, three hundred forty-five thousand, six hundred sixty-nine".