111221434007 has 2 divisors, whose sum is σ = 111221434008. Its totient is φ = 111221434006.

The previous prime is 111221433997. The next prime is 111221434031. The reversal of 111221434007 is 700434122111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111221434007 - 2²⁸ = 110952998551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111221434057) 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, 55610717003 + 55610717004.

It is an arithmetic number, because the mean of its divisors is an integer number (55610717004).

Almost surely, 2^111221434007 is an apocalyptic number.

111221434007 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221434007 is an equidigital number, since it uses as much as digits as its factorization.

111221434007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 111221434007 its reverse (700434122111), we get a palindrome (811655556118).

The spelling of 111221434007 in words is "one hundred eleven billion, two hundred twenty-one million, four hundred thirty-four thousand, seven".