1222669679 has 8 divisors (see below), whose sum is σ = 1524367488. Its totient is φ = 952729560.

The previous prime is 1222669663. The next prime is 1222669687. The reversal of 1222669679 is 9769662221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222669679 - 2⁴ = 1222669663 is a prime.

It is a super-2 number, since 2×1222669679² = 2989842287891926082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222669639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7939337 + ... + 7939490.

It is an arithmetic number, because the mean of its divisors is an integer number (190545936).

Almost surely, 2^1222669679 is an apocalyptic number.

1222669679 is a deficient number, since it is larger than the sum of its proper divisors (301697809).

1222669679 is a wasteful number, since it uses less digits than its factorization.

1222669679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15878845.

The product of its digits is 979776, while the sum is 50.

The square root of 1222669679 is about 34966.6938528652. The cubic root of 1222669679 is about 1069.3085698045.

The spelling of 1222669679 in words is "one billion, two hundred twenty-two million, six hundred sixty-nine thousand, six hundred seventy-nine".