2201110201021 has 4 divisors (see below), whose sum is σ = 2221303872700. Its totient is φ = 2180916529344.

The previous prime is 2201110200979. The next prime is 2201110201027. The reversal of 2201110201021 is 1201020111022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1564488132025 + 636622068996 = 1250795^2 + 797886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201110201021 is a prime.

It is a super-2 number, since 2×2201110201021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201110200992 and 2201110201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201110201027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10096835676 + ... + 10096835893.

It is an arithmetic number, because the mean of its divisors is an integer number (555325968175).

Almost surely, 2^{2201110201021} is an apocalyptic number.

It is an amenable number.

2201110201021 is a deficient number, since it is larger than the sum of its proper divisors (20193671679).

2201110201021 is a wasteful number, since it uses less digits than its factorization.

2201110201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20193671678.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2201110201021 its reverse (1201020111022), we get a palindrome (3402130312043).

The spelling of 2201110201021 in words is "two trillion, two hundred one billion, one hundred ten million, two hundred one thousand, twenty-one".