102221210023 has 4 divisors (see below), whose sum is σ = 102292744840. Its totient is φ = 102149675208.

The previous prime is 102221209999. The next prime is 102221210029. The reversal of 102221210023 is 320012122201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320012122201 = 179 ⋅1787777219.

It is a cyclic number.

It is not a de Polignac number, because 102221210023 - 2⁵ = 102221209991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102221209979 and 102221210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221210029) 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, 35765265 + ... + 35768122.

It is an arithmetic number, because the mean of its divisors is an integer number (25573186210).

Almost surely, 2^102221210023 is an apocalyptic number.

102221210023 is a deficient number, since it is larger than the sum of its proper divisors (71534817).

102221210023 is an equidigital number, since it uses as much as digits as its factorization.

102221210023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71534816.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102221210023 its reverse (320012122201), we get a palindrome (422233332224).

The spelling of 102221210023 in words is "one hundred two billion, two hundred twenty-one million, two hundred ten thousand, twenty-three".