201121001021233 has 4 divisors (see below), whose sum is σ = 201530616095088. Its totient is φ = 200711385947380.

The previous prime is 201121001021207. The next prime is 201121001021263. The reversal of 201121001021233 is 332120100121102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201121001021233 - 2⁵ = 201121001021201 is a prime.

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 201121001021233.

It is not an unprimeable number, because it can be changed into a prime (201121001021263) 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, 204807536191 + ... + 204807537172.

It is an arithmetic number, because the mean of its divisors is an integer number (50382654023772).

Almost surely, 2^{201121001021233} is an apocalyptic number.

It is an amenable number.

201121001021233 is a deficient number, since it is larger than the sum of its proper divisors (409615073855).

201121001021233 is an equidigital number, since it uses as much as digits as its factorization.

201121001021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409615073854.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 201121001021233 its reverse (332120100121102), we get a palindrome (533241101142335).

The spelling of 201121001021233 in words is "two hundred one trillion, one hundred twenty-one billion, one million, twenty-one thousand, two hundred thirty-three".