12221111001019 has 2 divisors, whose sum is σ = 12221111001020. Its totient is φ = 12221111001018.

The previous prime is 12221111000981. The next prime is 12221111001023. The reversal of 12221111001019 is 91010011112221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221111001019 is a prime.

It is a super-2 number, since 2×12221111001019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12221111002019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110555500509 + 6110555500510.

It is an arithmetic number, because the mean of its divisors is an integer number (6110555500510).

Almost surely, 2^{12221111001019} is an apocalyptic number.

12221111001019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221111001019 is an equidigital number, since it uses as much as digits as its factorization.

12221111001019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 12221111001019 in words is "twelve trillion, two hundred twenty-one billion, one hundred eleven million, one thousand, nineteen".