123122223000 has 384 divisors, whose sum is σ = 500640192000. Its totient is φ = 26660793600.

The previous prime is 123122222999. The next prime is 123122223043. The reversal of 123122223000 is 322221321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1145571 + ... + 1248429.

It is an arithmetic number, because the mean of its divisors is an integer number (1303750500).

Almost surely, 2^123122223000 is an apocalyptic number.

123122223000 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 123122223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250320096000).

123122223000 is an abundant number, since it is smaller than the sum of its proper divisors (377517969000).

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

123122223000 is a wasteful number, since it uses less digits than its factorization.

123122223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102912 (or 102895 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 123122223000 its reverse (322221321), we get a palindrome (123444444321).

The spelling of 123122223000 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred twenty-three thousand".