1211100300229 has 2 divisors, whose sum is σ = 1211100300230. Its totient is φ = 1211100300228.

The previous prime is 1211100300217. The next prime is 1211100300253. The reversal of 1211100300229 is 9220030011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 893021220004 + 318079080225 = 944998^2 + 563985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211100300229 - 2³¹ = 1208952816581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211100300259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605550150114 + 605550150115.

It is an arithmetic number, because the mean of its divisors is an integer number (605550150115).

Almost surely, 2^{1211100300229} is an apocalyptic number.

It is an amenable number.

1211100300229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211100300229 is an equidigital number, since it uses as much as digits as its factorization.

1211100300229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1211100300229 in words is "one trillion, two hundred eleven billion, one hundred million, three hundred thousand, two hundred twenty-nine".