1121022231011 has 2 divisors, whose sum is σ = 1121022231012. Its totient is φ = 1121022231010.

The previous prime is 1121022231001. The next prime is 1121022231013. The reversal of 1121022231011 is 1101322201211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121022231011 is a prime.

Together with 1121022231013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1121022231013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560511115505 + 560511115506.

It is an arithmetic number, because the mean of its divisors is an integer number (560511115506).

Almost surely, 2^{1121022231011} is an apocalyptic number.

1121022231011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121022231011 is an equidigital number, since it uses as much as digits as its factorization.

1121022231011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121022231011 its reverse (1101322201211), we get a palindrome (2222344432222).

The spelling of 1121022231011 in words is "one trillion, one hundred twenty-one billion, twenty-two million, two hundred thirty-one thousand, eleven".