2201201231 has 4 divisors (see below), whose sum is σ = 2205915192. Its totient is φ = 2196487272.

The previous prime is 2201201213. The next prime is 2201201257. The reversal of 2201201231 is 1321021022.

It is a happy number.

2201201231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1321021022 = 2 ⋅660510511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201201231 is a prime.

It is a super-2 number, since 2×2201201231² = 9690573718711830722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201201201) 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, 2356280 + ... + 2357213.

It is an arithmetic number, because the mean of its divisors is an integer number (551478798).

Almost surely, 2^2201201231 is an apocalyptic number.

2201201231 is a deficient number, since it is larger than the sum of its proper divisors (4713961).

2201201231 is an equidigital number, since it uses as much as digits as its factorization.

2201201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713960.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2201201231 is about 46916.9610162466. The cubic root of 2201201231 is about 1300.8281175336.

Adding to 2201201231 its reverse (1321021022), we get a palindrome (3522222253).

The spelling of 2201201231 in words is "two billion, two hundred one million, two hundred one thousand, two hundred thirty-one".