211100111020229 has 2 divisors, whose sum is σ = 211100111020230. Its totient is φ = 211100111020228.

The previous prime is 211100111020199. The next prime is 211100111020231. The reversal of 211100111020229 is 922020111001112.

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., 199267384764100 + 11832726256129 = 14116210^2 + 3439873^2 .

It is a cyclic number.

It is not a de Polignac number, because 211100111020229 - 2³⁶ = 211031391543493 is a prime.

Together with 211100111020231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211100111020289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105550055510114 + 105550055510115.

It is an arithmetic number, because the mean of its divisors is an integer number (105550055510115).

Almost surely, 2^{211100111020229} is an apocalyptic number.

It is an amenable number.

211100111020229 is a deficient number, since it is larger than the sum of its proper divisors (1).

211100111020229 is an equidigital number, since it uses as much as digits as its factorization.

211100111020229 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 23.

The spelling of 211100111020229 in words is "two hundred eleven trillion, one hundred billion, one hundred eleven million, twenty thousand, two hundred twenty-nine".