2021201122004 has 12 divisors (see below), whose sum is σ = 3537136569204. Its totient is φ = 1010590673664.

The previous prime is 2021201121971. The next prime is 2021201122013. The reversal of 2021201122004 is 4002211021202.

It can be written as a sum of positive squares in 2 ways, for example, as 949669740100 + 1071531381904 = 974510^2 + 1035148^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001959 + ... + 2837294.

It is an arithmetic number, because the mean of its divisors is an integer number (294761380767).

Almost surely, 2^{2021201122004} is an apocalyptic number.

It is an amenable number.

2021201122004 is a deficient number, since it is larger than the sum of its proper divisors (1515935447200).

2021201122004 is a wasteful number, since it uses less digits than its factorization.

2021201122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943674 (or 4943672 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2021201122004 its reverse (4002211021202), we get a palindrome (6023412143206).

The spelling of 2021201122004 in words is "two trillion, twenty-one billion, two hundred one million, one hundred twenty-two thousand, four".