1222628298 has 16 divisors (see below), whose sum is σ = 2450242656. Its totient is φ = 406711760.

The previous prime is 1222628243. The next prime is 1222628311. The reversal of 1222628298 is 8928262221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204561 + ... + 210452.

It is an arithmetic number, because the mean of its divisors is an integer number (153140166).

Almost surely, 2^1222628298 is an apocalyptic number.

1222628298 is an abundant number, since it is smaller than the sum of its proper divisors (1227614358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222628298 is a wasteful number, since it uses less digits than its factorization.

1222628298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415509.

The product of its digits is 110592, while the sum is 42.

The square root of 1222628298 is about 34966.1021276321. The cubic root of 1222628298 is about 1069.2965061600.

The spelling of 1222628298 in words is "one billion, two hundred twenty-two million, six hundred twenty-eight thousand, two hundred ninety-eight".