2211123231321 has 32 divisors (see below), whose sum is σ = 3061672121088. Its totient is φ = 1418254214400.

The previous prime is 2211123231253. The next prime is 2211123231353. The reversal of 2211123231321 is 1231323211122.

It is not a de Polignac number, because 2211123231321 - 2⁷ = 2211123231193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211123231291 and 2211123231300.

It is not an unprimeable number, because it can be changed into a prime (2211123231391) 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, 8811436 + ... + 9058898.

It is an arithmetic number, because the mean of its divisors is an integer number (95677253784).

Almost surely, 2^{2211123231321} is an apocalyptic number.

It is an amenable number.

2211123231321 is a deficient number, since it is larger than the sum of its proper divisors (850548889767).

2211123231321 is a wasteful number, since it uses less digits than its factorization.

2211123231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248401.

The product of its digits is 864, while the sum is 24.

Adding to 2211123231321 its reverse (1231323211122), we get a palindrome (3442446442443).

The spelling of 2211123231321 in words is "two trillion, two hundred eleven billion, one hundred twenty-three million, two hundred thirty-one thousand, three hundred twenty-one".