201111101001229 has 2 divisors, whose sum is σ = 201111101001230. Its totient is φ = 201111101001228.

The previous prime is 201111101001157. The next prime is 201111101001247. The reversal of 201111101001229 is 922100101111102.

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., 185227472628900 + 15883628372329 = 13609830^2 + 3985427^2 .

It is a cyclic number.

It is not a de Polignac number, because 201111101001229 - 2⁹ = 201111101000717 is a prime.

It is a super-3 number, since 3×201111101001229³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201111101001259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555550500614 + 100555550500615.

It is an arithmetic number, because the mean of its divisors is an integer number (100555550500615).

Almost surely, 2^{201111101001229} is an apocalyptic number.

It is an amenable number.

201111101001229 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111101001229 is an equidigital number, since it uses as much as digits as its factorization.

201111101001229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 201111101001229 in words is "two hundred one trillion, one hundred eleven billion, one hundred one million, one thousand, two hundred twenty-nine".