201100211129 has 2 divisors, whose sum is σ = 201100211130. Its totient is φ = 201100211128.

The previous prime is 201100211119. The next prime is 201100211209. The reversal of 201100211129 is 921112001102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102361603600 + 98738607529 = 319940^2 + 314227^2 .

It is a cyclic number.

It is not a de Polignac number, because 201100211129 - 2⁴ = 201100211113 is a prime.

It is a super-2 number, since 2×201100211129² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201100211129.

It is not a weakly prime, because it can be changed into another prime (201100211119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550105564 + 100550105565.

It is an arithmetic number, because the mean of its divisors is an integer number (100550105565).

Almost surely, 2^201100211129 is an apocalyptic number.

It is an amenable number.

201100211129 is a deficient number, since it is larger than the sum of its proper divisors (1).

201100211129 is an equidigital number, since it uses as much as digits as its factorization.

201100211129 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 20.

The spelling of 201100211129 in words is "two hundred one billion, one hundred million, two hundred eleven thousand, one hundred twenty-nine".