2002012220 has 48 divisors (see below), whose sum is σ = 4533254208. Its totient is φ = 738286080.

The previous prime is 2002012219. The next prime is 2002012231. The reversal of 2002012220 is 222102002.

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, 226280 + ... + 234960.

It is an arithmetic number, because the mean of its divisors is an integer number (94442796).

Almost surely, 2^2002012220 is an apocalyptic number.

2002012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002012220 is an abundant number, since it is smaller than the sum of its proper divisors (2531241988).

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

2002012220 is a wasteful number, since it uses less digits than its factorization.

2002012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9590 (or 9588 counting only the distinct ones).

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

The square root of 2002012220 is about 44743.8511976785. The cubic root of 2002012220 is about 1260.3434479894.

Adding to 2002012220 its reverse (222102002), we get a palindrome (2224114222).

The spelling of 2002012220 in words is "two billion, two million, twelve thousand, two hundred twenty".