102221211019 has 4 divisors (see below), whose sum is σ = 102247676496. Its totient is φ = 102194745544.

The previous prime is 102221211011. The next prime is 102221211023. The reversal of 102221211019 is 910112122201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102221211019 - 2³ = 102221211011 is a prime.

It is a super-2 number, since 2×102221211019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13226944 + ... + 13234669.

It is an arithmetic number, because the mean of its divisors is an integer number (25561919124).

Almost surely, 2^102221211019 is an apocalyptic number.

102221211019 is a deficient number, since it is larger than the sum of its proper divisors (26465477).

102221211019 is an equidigital number, since it uses as much as digits as its factorization.

102221211019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26465476.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 102221211019 in words is "one hundred two billion, two hundred twenty-one million, two hundred eleven thousand, nineteen".