2231233021221 has 8 divisors (see below), whose sum is σ = 2976518010144. Its totient is φ = 1486718356560.

The previous prime is 2231233021207. The next prime is 2231233021223. The reversal of 2231233021221 is 1221203321322.

2231233021221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2231233021221 - 2¹⁴ = 2231233004837 is a prime.

It is a super-3 number, since 3×2231233021221³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231233021191 and 2231233021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231233021223) 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, 192574306 + ... + 192585891.

It is an arithmetic number, because the mean of its divisors is an integer number (372064751268).

Almost surely, 2^{2231233021221} is an apocalyptic number.

It is an amenable number.

2231233021221 is a deficient number, since it is larger than the sum of its proper divisors (745284988923).

2231233021221 is a wasteful number, since it uses less digits than its factorization.

2231233021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385162131.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2231233021221 its reverse (1221203321322), we get a palindrome (3452436342543).

The spelling of 2231233021221 in words is "two trillion, two hundred thirty-one billion, two hundred thirty-three million, twenty-one thousand, two hundred twenty-one".