2220222220220 has 96 divisors (see below), whose sum is σ = 4862369336832. Its totient is φ = 850608000000.

The previous prime is 2220222220157. The next prime is 2220222220259. The reversal of 2220222220220 is 220222220222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2220222220192 and 2220222220201.

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, 224237270 + ... + 224247170.

It is an arithmetic number, because the mean of its divisors is an integer number (50649680592).

Almost surely, 2^{2220222220220} is an apocalyptic number.

2220222220220 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 2220222220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2431184668416).

2220222220220 is an abundant number, since it is smaller than the sum of its proper divisors (2642147116612).

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

2220222220220 is a wasteful number, since it uses less digits than its factorization.

2220222220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13623 (or 13621 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 2220222220220 its reverse (220222220222), we get a palindrome (2440444440442).

It can be divided in two parts, 2220222 and 220220, that added together give a palindrome (2440442).

The spelling of 2220222220220 in words is "two trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty".