123012220312200 has 192 divisors, whose sum is σ = 383364552205440. Its totient is φ = 32629208442880.

The previous prime is 123012220312187. The next prime is 123012220312211. The reversal of 123012220312200 is 2213022210321.

It is a super-2 number, since 2×123012220312200² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136975834 + ... + 137870966.

It is an arithmetic number, because the mean of its divisors is an integer number (1996690376070).

Almost surely, 2^{123012220312200} is an apocalyptic number.

123012220312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123012220312200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191682276102720).

123012220312200 is an abundant number, since it is smaller than the sum of its proper divisors (260352331893240).

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

123012220312200 is a wasteful number, since it uses less digits than its factorization.

123012220312200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896368 (or 896359 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123012220312200 its reverse (2213022210321), we get a palindrome (125225242522521).

The spelling of 123012220312200 in words is "one hundred twenty-three trillion, twelve billion, two hundred twenty million, three hundred twelve thousand, two hundred".