111001212229 has 2 divisors, whose sum is σ = 111001212230. Its totient is φ = 111001212228.

The previous prime is 111001212187. The next prime is 111001212239. The reversal of 111001212229 is 922212100111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60972943329 + 50028268900 = 246927^2 + 223670^2 .

It is a cyclic number.

It is not a de Polignac number, because 111001212229 - 2¹³ = 111001204037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111001212239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500606114 + 55500606115.

It is an arithmetic number, because the mean of its divisors is an integer number (55500606115).

Almost surely, 2^111001212229 is an apocalyptic number.

It is an amenable number.

111001212229 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001212229 is an equidigital number, since it uses as much as digits as its factorization.

111001212229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 111001212229 in words is "one hundred eleven billion, one million, two hundred twelve thousand, two hundred twenty-nine".