2120222000 has 80 divisors (see below), whose sum is σ = 5521125792. Its totient is φ = 782841600.

The previous prime is 2120221993. The next prime is 2120222003. The reversal of 2120222000 is 2220212.

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

It is not an unprimeable number, because it can be changed into a prime (2120222003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14774 + ... + 66773.

Almost surely, 2^2120222000 is an apocalyptic number.

2120222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120222000 is an abundant number, since it is smaller than the sum of its proper divisors (3400903792).

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

2120222000 is a wasteful number, since it uses less digits than its factorization.

2120222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81583 (or 81567 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2120222000 is about 46045.8684357240. The cubic root of 2120222000 is about 1284.6764970637.

Adding to 2120222000 its reverse (2220212), we get a palindrome (2122442212).

The spelling of 2120222000 in words is "two billion, one hundred twenty million, two hundred twenty-two thousand".