123222210020 has 144 divisors (see below), whose sum is σ = 328077667008. Its totient is φ = 38527614720.

The previous prime is 123222210011. The next prime is 123222210061. The reversal of 123222210020 is 20012222321.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 999155 + ... + 1115685.

It is an arithmetic number, because the mean of its divisors is an integer number (2278317132).

Almost surely, 2^123222210020 is an apocalyptic number.

123222210020 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 123222210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164038833504).

123222210020 is an abundant number, since it is smaller than the sum of its proper divisors (204855456988).

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

123222210020 is a wasteful number, since it uses less digits than its factorization.

123222210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116650 (or 116641 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 123222210020 its reverse (20012222321), we get a palindrome (143234432341).

The spelling of 123222210020 in words is "one hundred twenty-three billion, two hundred twenty-two million, two hundred ten thousand, twenty".