2231271036121 has 2 divisors, whose sum is σ = 2231271036122. Its totient is φ = 2231271036120.

The previous prime is 2231271036067. The next prime is 2231271036131. The reversal of 2231271036121 is 1216301721322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2183860328521 + 47410707600 = 1477789^2 + 217740^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231271036121 - 2³¹ = 2229123552473 is a prime.

It is a super-3 number, since 3×2231271036121³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231271036131) 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 as a sum of consecutive naturals, namely, 1115635518060 + 1115635518061.

It is an arithmetic number, because the mean of its divisors is an integer number (1115635518061).

Almost surely, 2^{2231271036121} is an apocalyptic number.

It is an amenable number.

2231271036121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231271036121 is an equidigital number, since it uses as much as digits as its factorization.

2231271036121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 2231271036121 its reverse (1216301721322), we get a palindrome (3447572757443).

The spelling of 2231271036121 in words is "two trillion, two hundred thirty-one billion, two hundred seventy-one million, thirty-six thousand, one hundred twenty-one".