20002012220 has 24 divisors (see below), whose sum is σ = 42007215600. Its totient is φ = 8000235392.

The previous prime is 20002012189. The next prime is 20002012243. The reversal of 20002012220 is 2221020002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359216 + ... + 411144.

It is an arithmetic number, because the mean of its divisors is an integer number (1750300650).

Almost surely, 2^20002012220 is an apocalyptic number.

20002012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002012220 is an abundant number, since it is smaller than the sum of its proper divisors (22005203380).

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

20002012220 is a wasteful number, since it uses less digits than its factorization.

20002012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71197 (or 71195 counting only the distinct ones).

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

Adding to 20002012220 its reverse (2221020002), we get a palindrome (22223032222).

The spelling of 20002012220 in words is "twenty billion, two million, twelve thousand, two hundred twenty".