2222000000 has 224 divisors, whose sum is σ = 6096015720. Its totient is φ = 800000000.

The previous prime is 2221999951. The next prime is 2222000029. The reversal of 2222000000 is 2222.

It is a Harshad number since it is a multiple of its sum of digits (8).

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 27 ways as a sum of consecutive naturals, for example, 21999950 + ... + 22000050.

Almost surely, 2^2222000000 is an apocalyptic number.

2222000000 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 2222000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3048007860).

2222000000 is an abundant number, since it is smaller than the sum of its proper divisors (3874015720).

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

2222000000 is an frugal number, since it uses more digits than its factorization.

2222000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 2222000000 is about 47138.0949975707. The cubic root of 2222000000 is about 1304.9123804102.

Adding to 2222000000 its reverse (2222), we get a palindrome (2222002222).

Multiplying 2222000000 by its reverse (2222), we get a square (4937284000000 = 2222000²).

2222000000 divided by its reverse (2222) gives a 6-th power (1000000 = 10⁶).

It can be divided in two parts, 22 and 22000000, that multiplied together give a square (484000000 = 22000²).

The spelling of 2222000000 in words is "two billion, two hundred twenty-two million", and thus it is an aban number.