123223111211210 has 16 divisors (see below), whose sum is σ = 221801733628776. Its totient is φ = 49289214829248.

The previous prime is 123223111211159. The next prime is 123223111211227. The reversal of 123223111211210 is 12112111322321.

It can be written as a sum of positive squares in 4 ways, for example, as 119499944149609 + 3723167061601 = 10931603^2 + 1929551^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22708544 + ... + 27606596.

Almost surely, 2^{123223111211210} is an apocalyptic number.

123223111211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123223111211210 is a deficient number, since it is larger than the sum of its proper divisors (98578622417566).

123223111211210 is a wasteful number, since it uses less digits than its factorization.

123223111211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7413817.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 123223111211210 its reverse (12112111322321), we get a palindrome (135335222533531).

It can be divided in two parts, 123223111 and 211210, that added together give a palindrome (123434321).

The spelling of 123223111211210 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, one hundred eleven million, two hundred eleven thousand, two hundred ten".