2222002000 has 80 divisors (see below), whose sum is σ = 5688934992. Its totient is φ = 836505600.

The previous prime is 2222001941. The next prime is 2222002019. The reversal of 2222002000 is 2002222.

It can be written as a sum of positive squares in 8 ways, for example, as 119596096 + 2102405904 = 10936^2 + 45852^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1324 + ... + 66676.

Almost surely, 2^2222002000 is an apocalyptic number.

2222002000 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 2222002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2844467496).

2222002000 is an abundant number, since it is smaller than the sum of its proper divisors (3466932992).

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

2222002000 is a wasteful number, since it uses less digits than its factorization.

2222002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65393 (or 65377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2222002000 is about 47138.1162118301. The cubic root of 2222002000 is about 1304.9127719230.

Adding to 2222002000 its reverse (2002222), we get a palindrome (2224004222).

The spelling of 2222002000 in words is "two billion, two hundred twenty-two million, two thousand".