111121331227 has 2 divisors, whose sum is σ = 111121331228. Its totient is φ = 111121331226.

The previous prime is 111121331213. The next prime is 111121331291. The reversal of 111121331227 is 722133121111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111121331227 - 2¹⁵ = 111121298459 is a prime.

It is not a weakly prime, because it can be changed into another prime (111121331927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560665613 + 55560665614.

It is an arithmetic number, because the mean of its divisors is an integer number (55560665614).

Almost surely, 2^111121331227 is an apocalyptic number.

111121331227 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121331227 is an equidigital number, since it uses as much as digits as its factorization.

111121331227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 25.

Adding to 111121331227 its reverse (722133121111), we get a palindrome (833254452338).

The spelling of 111121331227 in words is "one hundred eleven billion, one hundred twenty-one million, three hundred thirty-one thousand, two hundred twenty-seven".