12210020123 has 16 divisors (see below), whose sum is σ = 14046950400. Its totient is φ = 10396355616.

The previous prime is 12210020117. The next prime is 12210020171. The reversal of 12210020123 is 32102001221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12210020123 - 2⁴ = 12210020107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210020098 and 12210020107.

It is not an unprimeable number, because it can be changed into a prime (12210020113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1690586 + ... + 1697792.

It is an arithmetic number, because the mean of its divisors is an integer number (877934400).

Almost surely, 2^12210020123 is an apocalyptic number.

12210020123 is a deficient number, since it is larger than the sum of its proper divisors (1836930277).

12210020123 is a wasteful number, since it uses less digits than its factorization.

12210020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8786.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12210020123 its reverse (32102001221), we get a palindrome (44312021344).

The spelling of 12210020123 in words is "twelve billion, two hundred ten million, twenty thousand, one hundred twenty-three".