2231101223211 has 16 divisors (see below), whose sum is σ = 3578708729600. Its totient is φ = 1207814195808.

The previous prime is 2231101223203. The next prime is 2231101223213. The reversal of 2231101223211 is 1123221011322.

It is not a de Polignac number, because 2231101223211 - 2³ = 2231101223203 is a prime.

It is a super-3 number, since 3×2231101223211³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231101223213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2795865796 + ... + 2795866593.

It is an arithmetic number, because the mean of its divisors is an integer number (223669295600).

Almost surely, 2^{2231101223211} is an apocalyptic number.

2231101223211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2231101223211 is a deficient number, since it is larger than the sum of its proper divisors (1347607506389).

2231101223211 is a wasteful number, since it uses less digits than its factorization.

2231101223211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591732418.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2231101223211 its reverse (1123221011322), we get a palindrome (3354322234533).

The spelling of 2231101223211 in words is "two trillion, two hundred thirty-one billion, one hundred one million, two hundred twenty-three thousand, two hundred eleven".