2211031321121 has 16 divisors (see below), whose sum is σ = 2614525309440. Its totient is φ = 1829470332480.

The previous prime is 2211031321111. The next prime is 2211031321129. The reversal of 2211031321121 is 1211231301122.

It is not a de Polignac number, because 2211031321121 - 2¹⁰ = 2211031320097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211031321093 and 2211031321102.

It is not an unprimeable number, because it can be changed into a prime (2211031321129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32840 + ... + 2103126.

It is an arithmetic number, because the mean of its divisors is an integer number (163407831840).

Almost surely, 2^{2211031321121} is an apocalyptic number.

It is an amenable number.

2211031321121 is a deficient number, since it is larger than the sum of its proper divisors (403493988319).

2211031321121 is a wasteful number, since it uses less digits than its factorization.

2211031321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075584.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2211031321121 its reverse (1211231301122), we get a palindrome (3422262622243).

The spelling of 2211031321121 in words is "two trillion, two hundred eleven billion, thirty-one million, three hundred twenty-one thousand, one hundred twenty-one".