2001220012204 has 48 divisors (see below), whose sum is σ = 4181065072128. Its totient is φ = 819471172608.

The previous prime is 2001220012193. The next prime is 2001220012223. The reversal of 2001220012204 is 4022100221002.

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, 1128949 + ... + 2297164.

It is an arithmetic number, because the mean of its divisors is an integer number (87105522336).

Almost surely, 2^{2001220012204} is an apocalyptic number.

It is an amenable number.

2001220012204 is an abundant number, since it is smaller than the sum of its proper divisors (2179845059924).

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

2001220012204 is a wasteful number, since it uses less digits than its factorization.

2001220012204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427054 (or 3427052 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2001220012204 its reverse (4022100221002), we get a palindrome (6023320233206).

The spelling of 2001220012204 in words is "two trillion, one billion, two hundred twenty million, twelve thousand, two hundred four".