201121332021233 has 4 divisors (see below), whose sum is σ = 216592203715188. Its totient is φ = 185650460327280.

The previous prime is 201121332021223. The next prime is 201121332021289. The reversal of 201121332021233 is 332120233121102.

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 136581831833329 + 64539500187904 = 11686823^2 + 8033648^2 .

It is not a de Polignac number, because 201121332021233 - 2⁸ = 201121332020977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201121332021223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7735435846958 + ... + 7735435846983.

It is an arithmetic number, because the mean of its divisors is an integer number (54148050928797).

Almost surely, 2^{201121332021233} is an apocalyptic number.

It is an amenable number.

201121332021233 is a deficient number, since it is larger than the sum of its proper divisors (15470871693955).

201121332021233 is a wasteful number, since it uses less digits than its factorization.

201121332021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15470871693954.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 201121332021233 its reverse (332120233121102), we get a palindrome (533241565142335).

The spelling of 201121332021233 in words is "two hundred one trillion, one hundred twenty-one billion, three hundred thirty-two million, twenty-one thousand, two hundred thirty-three".