2221231120211 has 16 divisors (see below), whose sum is σ = 2372087289600. Its totient is φ = 2075333836800.

The previous prime is 2221231120201. The next prime is 2221231120237. The reversal of 2221231120211 is 1120211321222.

It is a de Polignac number, because none of the positive numbers 2^k-2221231120211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221231120201) 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, 17774795 + ... + 17899323.

It is an arithmetic number, because the mean of its divisors is an integer number (148255455600).

Almost surely, 2^{2221231120211} is an apocalyptic number.

2221231120211 is a deficient number, since it is larger than the sum of its proper divisors (150856169389).

2221231120211 is a wasteful number, since it uses less digits than its factorization.

2221231120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144430.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2221231120211 its reverse (1120211321222), we get a palindrome (3341442441433).

The spelling of 2221231120211 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, one hundred twenty thousand, two hundred eleven".