222011031330220 has 144 divisors (see below), whose sum is σ = 527002214435424. Its totient is φ = 78446114841600.

The previous prime is 222011031330203. The next prime is 222011031330223. The reversal of 222011031330220 is 22033130110222.

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 = 222011031330191 and 222011031330200.

It is not an unprimeable number, because it can be changed into a prime (222011031330223) 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, 66510859 + ... + 69769021.

It is an arithmetic number, because the mean of its divisors is an integer number (3659737600246).

Almost surely, 2^{222011031330220} is an apocalyptic number.

222011031330220 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 222011031330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263501107217712).

222011031330220 is an abundant number, since it is smaller than the sum of its proper divisors (304991183105204).

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

222011031330220 is a wasteful number, since it uses less digits than its factorization.

222011031330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258992 (or 3258979 counting only the distinct ones).

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

Adding to 222011031330220 its reverse (22033130110222), we get a palindrome (244044161440442).

The spelling of 222011031330220 in words is "two hundred twenty-two trillion, eleven billion, thirty-one million, three hundred thirty thousand, two hundred twenty".