123202110220 has 216 divisors, whose sum is σ = 315401724288. Its totient is φ = 40265164800.

The previous prime is 123202110217. The next prime is 123202110233. The reversal of 123202110220 is 22011202321.

It is a happy number.

It is a super-2 number, since 2×123202110220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123202110194 and 123202110203.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 161894640 + ... + 161895400.

It is an arithmetic number, because the mean of its divisors is an integer number (1460193168).

Almost surely, 2^123202110220 is an apocalyptic number.

123202110220 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 123202110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157700862144).

123202110220 is an abundant number, since it is smaller than the sum of its proper divisors (192199614068).

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

123202110220 is a wasteful number, since it uses less digits than its factorization.

123202110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 123202110220 its reverse (22011202321), we get a palindrome (145213312541).

The spelling of 123202110220 in words is "one hundred twenty-three billion, two hundred two million, one hundred ten thousand, two hundred twenty".