111020222429 has 2 divisors, whose sum is σ = 111020222430. Its totient is φ = 111020222428.

The previous prime is 111020222329. The next prime is 111020222441. The reversal of 111020222429 is 924222020111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57349233529 + 53670988900 = 239477^2 + 231670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111020222429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111020222398 and 111020222407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111020222329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510111214 + 55510111215.

It is an arithmetic number, because the mean of its divisors is an integer number (55510111215).

Almost surely, 2^111020222429 is an apocalyptic number.

It is an amenable number.

111020222429 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020222429 is an equidigital number, since it uses as much as digits as its factorization.

111020222429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 111020222429 in words is "one hundred eleven billion, twenty million, two hundred twenty-two thousand, four hundred twenty-nine".