111022111229 has 2 divisors, whose sum is σ = 111022111230. Its totient is φ = 111022111228.

The previous prime is 111022111183. The next prime is 111022111231. The reversal of 111022111229 is 922111220111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78775648900 + 32246462329 = 280670^2 + 179573^2 .

It is an emirp because it is prime and its reverse (922111220111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111022111229 is a prime.

It is a Sophie Germain prime.

Together with 111022111231, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111022111289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511055614 + 55511055615.

It is an arithmetic number, because the mean of its divisors is an integer number (55511055615).

Almost surely, 2^111022111229 is an apocalyptic number.

It is an amenable number.

111022111229 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022111229 is an equidigital number, since it uses as much as digits as its factorization.

111022111229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 111022111229 in words is "one hundred eleven billion, twenty-two million, one hundred eleven thousand, two hundred twenty-nine".