22112003331220 has 96 divisors (see below), whose sum is σ = 51895265587200. Its totient is φ = 7844137036800.

The previous prime is 22112003331203. The next prime is 22112003331317. The reversal of 22112003331220 is 2213330021122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22112003331191 and 22112003331200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170133421 + ... + 170263339.

It is an arithmetic number, because the mean of its divisors is an integer number (540575683200).

Almost surely, 2^{22112003331220} is an apocalyptic number.

22112003331220 is a gapful number since it is divisible by the number (20) 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 22112003331220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25947632793600).

22112003331220 is an abundant number, since it is smaller than the sum of its proper divisors (29783262255980).

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

22112003331220 is a wasteful number, since it uses less digits than its factorization.

22112003331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148849 (or 148847 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 22112003331220 its reverse (2213330021122), we get a palindrome (24325333352342).

The spelling of 22112003331220 in words is "twenty-two trillion, one hundred twelve billion, three million, three hundred thirty-one thousand, two hundred twenty".