2222220020000 has 120 divisors (see below), whose sum is σ = 5470488142812. Its totient is φ = 888320000000.

The previous prime is 2222220019967. The next prime is 2222220020011. The reversal of 2222220020000 is 200222222.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 62178414736 + 2160041605264 = 249356^2 + 1469708^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31985300 + ... + 32054700.

Almost surely, 2^{2222220020000} is an apocalyptic number.

2222220020000 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 2222220020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2735244071406).

2222220020000 is an abundant number, since it is smaller than the sum of its proper divisors (3248268122812).

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

2222220020000 is an equidigital number, since it uses as much as digits as its factorization.

2222220020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71032 (or 71009 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 2222220020000 its reverse (200222222), we get a palindrome (2222420242222).

The spelling of 2222220020000 in words is "two trillion, two hundred twenty-two billion, two hundred twenty million, twenty thousand".