123210123221211 has 64 divisors (see below), whose sum is σ = 183640940743680. Its totient is φ = 72984920486400.

The previous prime is 123210123221161. The next prime is 123210123221249. The reversal of 123210123221211 is 112122321012321.

It is not a de Polignac number, because 123210123221211 - 2⁷ = 123210123221083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123210123221281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 186658810 + ... + 187317728.

It is an arithmetic number, because the mean of its divisors is an integer number (2869389699120).

Almost surely, 2^{123210123221211} is an apocalyptic number.

123210123221211 is a deficient number, since it is larger than the sum of its proper divisors (60430817522469).

123210123221211 is a wasteful number, since it uses less digits than its factorization.

123210123221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660356.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 123210123221211 its reverse (112122321012321), we get a palindrome (235332444233532).

The spelling of 123210123221211 in words is "one hundred twenty-three trillion, two hundred ten billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred eleven".