123123022222200 has 576 divisors, whose sum is σ = 516349648174080. Its totient is φ = 23616002995200.

The previous prime is 123123022222183. The next prime is 123123022222219. The reversal of 123123022222200 is 2222220321321.

It is a super-2 number, since 2×123123022222200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2711584 + ... + 15924783.

Almost surely, 2^{123123022222200} is an apocalyptic number.

123123022222200 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 123123022222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258174824087040).

123123022222200 is an abundant number, since it is smaller than the sum of its proper divisors (393226625951880).

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

123123022222200 is a wasteful number, since it uses less digits than its factorization.

123123022222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18636428 (or 18636408 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123123022222200 its reverse (2222220321321), we get a palindrome (125345242543521).

The spelling of 123123022222200 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, twenty-two million, two hundred twenty-two thousand, two hundred".