2231121120211 has 2 divisors, whose sum is σ = 2231121120212. Its totient is φ = 2231121120210.

The previous prime is 2231121120203. The next prime is 2231121120233. The reversal of 2231121120211 is 1120211211322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2231121120211 - 2³ = 2231121120203 is a prime.

It is a super-3 number, since 3×2231121120211³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231121120281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115560560105 + 1115560560106.

It is an arithmetic number, because the mean of its divisors is an integer number (1115560560106).

Almost surely, 2^{2231121120211} is an apocalyptic number.

2231121120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231121120211 is an equidigital number, since it uses as much as digits as its factorization.

2231121120211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2231121120211 its reverse (1120211211322), we get a palindrome (3351332331533).

The spelling of 2231121120211 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, one hundred twenty thousand, two hundred eleven".