1222666323 has 4 divisors (see below), whose sum is σ = 1630221768. Its totient is φ = 815110880.

The previous prime is 1222666271. The next prime is 1222666339. The reversal of 1222666323 is 3236662221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222666323 - 2²⁸ = 954230867 is a prime.

It is a super-3 number, since 3×1222666323³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222666373) 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, 203777718 + ... + 203777723.

It is an arithmetic number, because the mean of its divisors is an integer number (407555442).

Almost surely, 2^1222666323 is an apocalyptic number.

1222666323 is a deficient number, since it is larger than the sum of its proper divisors (407555445).

1222666323 is an equidigital number, since it uses as much as digits as its factorization.

1222666323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407555444.

The product of its digits is 31104, while the sum is 33.

The square root of 1222666323 is about 34966.6458643090. The cubic root of 1222666323 is about 1069.3075914528.

The spelling of 1222666323 in words is "one billion, two hundred twenty-two million, six hundred sixty-six thousand, three hundred twenty-three".