2231301011221 has 8 divisors (see below), whose sum is σ = 2261939399360. Its totient is φ = 2200664585952.

The previous prime is 2231301011201. The next prime is 2231301011243. The reversal of 2231301011221 is 1221101031322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231301011221 - 2²⁹ = 2230764140309 is a prime.

It is a super-3 number, since 3×2231301011221³ (a number of 38 digits) contains 333 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 (2231301011201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1876240 + ... + 2825398.

It is an arithmetic number, because the mean of its divisors is an integer number (282742424920).

Almost surely, 2^{2231301011221} is an apocalyptic number.

It is an amenable number.

2231301011221 is a deficient number, since it is larger than the sum of its proper divisors (30638388139).

2231301011221 is an equidigital number, since it uses as much as digits as its factorization.

2231301011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981435.

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

Adding to 2231301011221 its reverse (1221101031322), we get a palindrome (3452402042543).

It can be divided in two parts, 223130101 and 1221, that added together give a palindrome (223131322).

The spelling of 2231301011221 in words is "two trillion, two hundred thirty-one billion, three hundred one million, eleven thousand, two hundred twenty-one".