1223221298 has 32 divisors (see below), whose sum is σ = 2117477376. Its totient is φ = 524936448.

The previous prime is 1223221297. The next prime is 1223221309. The reversal of 1223221298 is 8921223221.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1223221297) 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, 20015 + ... + 53357.

It is an arithmetic number, because the mean of its divisors is an integer number (66171168).

Almost surely, 2^1223221298 is an apocalyptic number.

1223221298 is a deficient number, since it is larger than the sum of its proper divisors (894256078).

1223221298 is a wasteful number, since it uses less digits than its factorization.

1223221298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33458.

The product of its digits is 6912, while the sum is 32.

The square root of 1223221298 is about 34974.5807408752. The cubic root of 1223221298 is about 1069.4693551882.

The spelling of 1223221298 in words is "one billion, two hundred twenty-three million, two hundred twenty-one thousand, two hundred ninety-eight".