1222597231139 has 2 divisors, whose sum is σ = 1222597231140. Its totient is φ = 1222597231138.

The previous prime is 1222597231127. The next prime is 1222597231147. The reversal of 1222597231139 is 9311327952221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222597231139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222597231093 and 1222597231102.

It is not a weakly prime, because it can be changed into another prime (1222597231109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611298615569 + 611298615570.

It is an arithmetic number, because the mean of its divisors is an integer number (611298615570).

Almost surely, 2^{1222597231139} is an apocalyptic number.

1222597231139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222597231139 is an equidigital number, since it uses as much as digits as its factorization.

1222597231139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The spelling of 1222597231139 in words is "one trillion, two hundred twenty-two billion, five hundred ninety-seven million, two hundred thirty-one thousand, one hundred thirty-nine".