12302221891 has 2 divisors, whose sum is σ = 12302221892. Its totient is φ = 12302221890.

The previous prime is 12302221873. The next prime is 12302221927. The reversal of 12302221891 is 19812220321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12302221891 - 2¹⁷ = 12302090819 is a prime.

It is not a weakly prime, because it can be changed into another prime (12302221801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151110945 + 6151110946.

It is an arithmetic number, because the mean of its divisors is an integer number (6151110946).

Almost surely, 2^12302221891 is an apocalyptic number.

12302221891 is a deficient number, since it is larger than the sum of its proper divisors (1).

12302221891 is an equidigital number, since it uses as much as digits as its factorization.

12302221891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 12302221891 in words is "twelve billion, three hundred two million, two hundred twenty-one thousand, eight hundred ninety-one".