1111211224147 has 2 divisors, whose sum is σ = 1111211224148. Its totient is φ = 1111211224146.

The previous prime is 1111211224087. The next prime is 1111211224157. The reversal of 1111211224147 is 7414221121111.

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-1111211224147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111211224157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555605612073 + 555605612074.

It is an arithmetic number, because the mean of its divisors is an integer number (555605612074).

Almost surely, 2^{1111211224147} is an apocalyptic number.

1111211224147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111211224147 is an equidigital number, since it uses as much as digits as its factorization.

1111211224147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 896, while the sum is 28.

Adding to 1111211224147 its reverse (7414221121111), we get a palindrome (8525432345258).

The spelling of 1111211224147 in words is "one trillion, one hundred eleven billion, two hundred eleven million, two hundred twenty-four thousand, one hundred forty-seven".