211101021133 has 2 divisors, whose sum is σ = 211101021134. Its totient is φ = 211101021132.

The previous prime is 211101021029. The next prime is 211101021137. The reversal of 211101021133 is 331120101112.

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., 122453104489 + 88647916644 = 349933^2 + 297738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211101021133 is a prime.

It is a super-2 number, since 2×211101021133² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211101021137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105550510566 + 105550510567.

It is an arithmetic number, because the mean of its divisors is an integer number (105550510567).

Almost surely, 2^211101021133 is an apocalyptic number.

It is an amenable number.

211101021133 is a deficient number, since it is larger than the sum of its proper divisors (1).

211101021133 is an equidigital number, since it uses as much as digits as its factorization.

211101021133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 211101021133 its reverse (331120101112), we get a palindrome (542221122245).

The spelling of 211101021133 in words is "two hundred eleven billion, one hundred one million, twenty-one thousand, one hundred thirty-three".