210102222123 has 6 divisors (see below), whose sum is σ = 303480987524. Its totient is φ = 140068148076.

The previous prime is 210102222107. The next prime is 210102222133. The reversal of 210102222123 is 321222201012.

It is not a de Polignac number, because 210102222123 - 2⁴ = 210102222107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210102222096 and 210102222105.

It is not an unprimeable number, because it can be changed into a prime (210102222133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11672345665 + ... + 11672345682.

Almost surely, 2^210102222123 is an apocalyptic number.

210102222123 is a deficient number, since it is larger than the sum of its proper divisors (93378765401).

210102222123 is a wasteful number, since it uses less digits than its factorization.

210102222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23344691353 (or 23344691350 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 210102222123 its reverse (321222201012), we get a palindrome (531324423135).

The spelling of 210102222123 in words is "two hundred ten billion, one hundred two million, two hundred twenty-two thousand, one hundred twenty-three".