2122222000 has 80 divisors (see below), whose sum is σ = 5251083552. Its totient is φ = 829113600.

The previous prime is 2122221989. The next prime is 2122222027. The reversal of 2122222000 is 2222212.

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

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, 73662 + ... + 98338.

Almost surely, 2^2122222000 is an apocalyptic number.

2122222000 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 2122222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2625541776).

2122222000 is an abundant number, since it is smaller than the sum of its proper divisors (3128861552).

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

2122222000 is a wasteful number, since it uses less digits than its factorization.

2122222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24743 (or 24727 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2122222000 is about 46067.5807917021. The cubic root of 2122222000 is about 1285.0803141371.

Adding to 2122222000 its reverse (2222212), we get a palindrome (2124444212).

The spelling of 2122222000 in words is "two billion, one hundred twenty-two million, two hundred twenty-two thousand".