2231011022221 has 32 divisors (see below), whose sum is σ = 2481108811776. Its totient is φ = 1998933552000.

The previous prime is 2231011022209. The next prime is 2231011022237. The reversal of 2231011022221 is 1222201101322.

2231011022221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2231011022221 - 2¹⁷ = 2231010891149 is a prime.

It is a super-3 number, since 3×2231011022221³ (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 (2231011022291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3412126 + ... + 4013056.

It is an arithmetic number, because the mean of its divisors is an integer number (77534650368).

Almost surely, 2^{2231011022221} is an apocalyptic number.

It is an amenable number.

2231011022221 is a deficient number, since it is larger than the sum of its proper divisors (250097789555).

2231011022221 is a wasteful number, since it uses less digits than its factorization.

2231011022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601153.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2231011022221 its reverse (1222201101322), we get a palindrome (3453212123543).

The spelling of 2231011022221 in words is "two trillion, two hundred thirty-one billion, eleven million, twenty-two thousand, two hundred twenty-one".