202201120202201 has 4 divisors (see below), whose sum is σ = 202212137553972. Its totient is φ = 202190102850432.

The previous prime is 202201120202177. The next prime is 202201120202261. The reversal of 202201120202201 is 102202021102202.

It is a happy number.

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 5703384606976 + 196497735595225 = 2388176^2 + 14017765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202201120202201 is a prime.

It is a super-2 number, since 2×202201120202201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202201120202201.

It is not an unprimeable number, because it can be changed into a prime (202201120202261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5508648356 + ... + 5508685061.

It is an arithmetic number, because the mean of its divisors is an integer number (50553034388493).

Almost surely, 2^{202201120202201} is an apocalyptic number.

It is an amenable number.

202201120202201 is a deficient number, since it is larger than the sum of its proper divisors (11017351771).

202201120202201 is a wasteful number, since it uses less digits than its factorization.

202201120202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11017351770.

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

Adding to 202201120202201 its reverse (102202021102202), we get a palindrome (304403141304403).

Subtracting from 202201120202201 its reverse (102202021102202), we obtain a palindrome (99999099099999).

The spelling of 202201120202201 in words is "two hundred two trillion, two hundred one billion, one hundred twenty million, two hundred two thousand, two hundred one".