1222403399 has 24 divisors (see below), whose sum is σ = 1481620608. Its totient is φ = 987791760.

The previous prime is 1222403393. The next prime is 1222403407. The reversal of 1222403399 is 9933042221.

It is a de Polignac number, because none of the positive numbers 2^k-1222403399 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222403393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 572564 + ... + 574694.

It is an arithmetic number, because the mean of its divisors is an integer number (61734192).

Almost surely, 2^1222403399 is an apocalyptic number.

1222403399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1222403399 is a deficient number, since it is larger than the sum of its proper divisors (259217209).

1222403399 is a wasteful number, since it uses less digits than its factorization.

1222403399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403 (or 2384 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 1222403399 is about 34962.8860221807. The cubic root of 1222403399 is about 1069.2309374552.

The spelling of 1222403399 in words is "one billion, two hundred twenty-two million, four hundred three thousand, three hundred ninety-nine".