103122021220 has 144 divisors (see below), whose sum is σ = 232732507392. Its totient is φ = 38308005120.

The previous prime is 103122021193. The next prime is 103122021229. The reversal of 103122021220 is 22120221301.

It is a happy number.

It is a super-3 number, since 3×103122021220³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103122021194 and 103122021203.

It is not an unprimeable number, because it can be changed into a prime (103122021229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223691790 + ... + 223692250.

It is an arithmetic number, because the mean of its divisors is an integer number (1616197968).

Almost surely, 2^103122021220 is an apocalyptic number.

103122021220 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 103122021220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116366253696).

103122021220 is an abundant number, since it is smaller than the sum of its proper divisors (129610486172).

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

103122021220 is a wasteful number, since it uses less digits than its factorization.

103122021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 797 counting only the distinct ones).

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

Adding to 103122021220 its reverse (22120221301), we get a palindrome (125242242521).

The spelling of 103122021220 in words is "one hundred three billion, one hundred twenty-two million, twenty-one thousand, two hundred twenty".