123210123221210 has 64 divisors (see below), whose sum is σ = 247556392611840. Its totient is φ = 43933618882560.

The previous prime is 123210123221161. The next prime is 123210123221249. The reversal of 123210123221210 is 12122321012321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248470715 + ... + 248966094.

It is an arithmetic number, because the mean of its divisors is an integer number (3868068634560).

Almost surely, 2^{123210123221210} is an apocalyptic number.

123210123221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123210123221210 is an abundant number, since it is smaller than the sum of its proper divisors (124346269390630).

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

123210123221210 is a wasteful number, since it uses less digits than its factorization.

123210123221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497436911.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 123210123221210 its reverse (12122321012321), we get a palindrome (135332444233531).

The spelling of 123210123221210 in words is "one hundred twenty-three trillion, two hundred ten billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred ten".