1222396139 has 8 divisors (see below), whose sum is σ = 1266108960. Its totient is φ = 1178787456.

The previous prime is 1222396129. The next prime is 1222396171. The reversal of 1222396139 is 9316932221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222396139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222396129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1742 + ... + 49475.

It is an arithmetic number, because the mean of its divisors is an integer number (158263620).

Almost surely, 2^1222396139 is an apocalyptic number.

1222396139 is a deficient number, since it is larger than the sum of its proper divisors (43712821).

1222396139 is an equidigital number, since it uses as much as digits as its factorization.

1222396139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52069.

The product of its digits is 34992, while the sum is 38.

The square root of 1222396139 is about 34962.7821976455. The cubic root of 1222396139 is about 1069.2288206875.

The spelling of 1222396139 in words is "one billion, two hundred twenty-two million, three hundred ninety-six thousand, one hundred thirty-nine".