2201001012020 has 24 divisors (see below), whose sum is σ = 4622130076200. Its totient is φ = 880395080832.

The previous prime is 2201001012017. The next prime is 2201001012053. The reversal of 2201001012020 is 202101001022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13270118416 + 2187730893604 = 115196^2 + 1479098^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2201001011992 and 2201001012010.

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, 5957246 + ... + 6315914.

It is an arithmetic number, because the mean of its divisors is an integer number (192588753175).

Almost surely, 2^{2201001012020} is an apocalyptic number.

2201001012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201001012020 is an abundant number, since it is smaller than the sum of its proper divisors (2421129064180).

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

2201001012020 is a wasteful number, since it uses less digits than its factorization.

2201001012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665507 (or 665505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2201001012020 its reverse (202101001022), we get a palindrome (2403102013042).

The spelling of 2201001012020 in words is "two trillion, two hundred one billion, one million, twelve thousand, twenty".