221002131019 has 2 divisors, whose sum is σ = 221002131020. Its totient is φ = 221002131018.

The previous prime is 221002130983. The next prime is 221002131073. The reversal of 221002131019 is 910131200122.

221002131019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221002131019 - 2³³ = 212412196427 is a prime.

It is a super-2 number, since 2×221002131019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221002131079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501065509 + 110501065510.

It is an arithmetic number, because the mean of its divisors is an integer number (110501065510).

Almost surely, 2^221002131019 is an apocalyptic number.

221002131019 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002131019 is an equidigital number, since it uses as much as digits as its factorization.

221002131019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 221002131019 in words is "two hundred twenty-one billion, two million, one hundred thirty-one thousand, nineteen".