1222409296 has 20 divisors (see below), whose sum is σ = 2369128500. Its totient is φ = 611021312.

The previous prime is 1222409281. The next prime is 1222409351. The reversal of 1222409296 is 6929042221.

It can be written as a sum of positive squares in 2 ways, for example, as 832899600 + 389509696 = 28860^2 + 19736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55350 + ... + 74218.

It is an arithmetic number, because the mean of its divisors is an integer number (118456425).

Almost surely, 2^1222409296 is an apocalyptic number.

1222409296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1222409296 is a deficient number, since it is larger than the sum of its proper divisors (1146719204).

1222409296 is a wasteful number, since it uses less digits than its factorization.

1222409296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22926 (or 22920 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1222409296 is about 34962.9703543621. The cubic root of 1222409296 is about 1069.2326568125.

The spelling of 1222409296 in words is "one billion, two hundred twenty-two million, four hundred nine thousand, two hundred ninety-six".