20112231332201 has 4 divisors (see below), whose sum is σ = 20354547372432. Its totient is φ = 19869915291972.

The previous prime is 20112231332069. The next prime is 20112231332261. The reversal of 20112231332201 is 10223313221102.

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 20112231332201 - 2¹⁰ = 20112231331177 is a prime.

It is a super-2 number, since 2×20112231332201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112231332261) 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, 121158019991 + ... + 121158020156.

It is an arithmetic number, because the mean of its divisors is an integer number (5088636843108).

Almost surely, 2^{20112231332201} is an apocalyptic number.

It is an amenable number.

20112231332201 is a deficient number, since it is larger than the sum of its proper divisors (242316040231).

20112231332201 is an equidigital number, since it uses as much as digits as its factorization.

20112231332201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242316040230.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20112231332201 its reverse (10223313221102), we get a palindrome (30335544553303).

The spelling of 20112231332201 in words is "twenty trillion, one hundred twelve billion, two hundred thirty-one million, three hundred thirty-two thousand, two hundred one".