123210123221208 has 64 divisors (see below), whose sum is σ = 324313588425600. Its totient is φ = 38899289318400.

The previous prime is 123210123221161. The next prime is 123210123221249. The reversal of 123210123221208 is 802122321012321.

It is a super-2 number, since 2×123210123221208² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29905593 + ... + 33775208.

It is an arithmetic number, because the mean of its divisors is an integer number (5067399819150).

Almost surely, 2^{123210123221208} is an apocalyptic number.

It is an amenable number.

123210123221208 is an abundant number, since it is smaller than the sum of its proper divisors (201103465204392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123210123221208 is a wasteful number, since it uses less digits than its factorization.

123210123221208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63685072 (or 63685068 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 123210123221208 its reverse (802122321012321), we get a palindrome (925332444233529).

The spelling of 123210123221208 in words is "one hundred twenty-three trillion, two hundred ten billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred eight".