2222220000 has 960 divisors, whose sum is σ = 10051582464. Its totient is φ = 414720000.

The previous prime is 2222219999. The next prime is 2222220047. The reversal of 2222220000 is 222222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 60059982 + ... + 60060018.

Almost surely, 2^2222220000 is an apocalyptic number.

2222220000 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 2222220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5025791232).

2222220000 is an abundant number, since it is smaller than the sum of its proper divisors (7829362464).

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

2222220000 is a wasteful number, since it uses less digits than its factorization.

2222220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2222220000 is about 47140.4285088712. The cubic root of 2222220000 is about 1304.9554454042.

Adding to 2222220000 its reverse (222222), we get a palindrome (2222442222).

Multiplying 2222220000 by its reverse (222222), we get a square (493826172840000 = 22222200²).

2222220000 divided by its reverse (222222) gives a 4-th power (10000 = 10⁴).

It can be divided in two parts, 2222 and 220000, that added together give a palindrome (222222).

The spelling of 2222220000 in words is "two billion, two hundred twenty-two million, two hundred twenty thousand".