123211011232210 has 32 divisors (see below), whose sum is σ = 241945771785984. Its totient is φ = 44803235616000.

The previous prime is 123211011232117. The next prime is 123211011232217. The reversal of 123211011232210 is 12232110112321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (123211011232217) 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, 3143706 + ... + 16009525.

It is an arithmetic number, because the mean of its divisors is an integer number (7560805368312).

Almost surely, 2^{123211011232210} is an apocalyptic number.

123211011232210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123211011232210 is a deficient number, since it is larger than the sum of its proper divisors (118734760553774).

123211011232210 is a wasteful number, since it uses less digits than its factorization.

123211011232210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19211730.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 123211011232210 its reverse (12232110112321), we get a palindrome (135443121344531).

The spelling of 123211011232210 in words is "one hundred twenty-three trillion, two hundred eleven billion, eleven million, two hundred thirty-two thousand, two hundred ten".