20003112210 has 64 divisors (see below), whose sum is σ = 49714300800. Its totient is φ = 5144896512.

The previous prime is 20003112193. The next prime is 20003112221. The reversal of 20003112210 is 1221130002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 866437 + ... + 889223.

It is an arithmetic number, because the mean of its divisors is an integer number (776785950).

Almost surely, 2^20003112210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20003112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24857150400).

20003112210 is an abundant number, since it is smaller than the sum of its proper divisors (29711188590).

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

20003112210 is a wasteful number, since it uses less digits than its factorization.

20003112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23835.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20003112210 its reverse (1221130002), we get a palindrome (21224242212).

The spelling of 20003112210 in words is "twenty billion, three million, one hundred twelve thousand, two hundred ten".