123200022 has 32 divisors (see below), whose sum is σ = 271039104. Its totient is φ = 37330920.

The previous prime is 123200017. The next prime is 123200023. The reversal of 123200022 is 220002321.

It is a junction number, because it is equal to n+sod(n) for n = 123199980 and 123200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123200023) 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, 273 + ... + 15699.

It is an arithmetic number, because the mean of its divisors is an integer number (8469972).

Almost surely, 2^123200022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123200022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135519552).

123200022 is an abundant number, since it is smaller than the sum of its proper divisors (147839082).

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

123200022 is a wasteful number, since it uses less digits than its factorization.

123200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15465 (or 15443 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 123200022 is about 11099.5505314405. The cubic root of 123200022 is about 497.5884165642.

Adding to 123200022 its reverse (220002321), we get a palindrome (343202343).

The spelling of 123200022 in words is "one hundred twenty-three million, two hundred thousand, twenty-two".