100211102200021 has 2 divisors, whose sum is σ = 100211102200022. Its totient is φ = 100211102200020.

The previous prime is 100211102199997. The next prime is 100211102200043. The reversal of 100211102200021 is 120002201112001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67483103336100 + 32727998863921 = 8214810^2 + 5720839^2 .

It is a cyclic number.

It is not a de Polignac number, because 100211102200021 - 2¹⁷ = 100211102068949 is a prime.

It is a super-3 number, since 3×100211102200021³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100211102199974 and 100211102200010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100211102200921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105551100010 + 50105551100011.

It is an arithmetic number, because the mean of its divisors is an integer number (50105551100011).

Almost surely, 2^{100211102200021} is an apocalyptic number.

It is an amenable number.

100211102200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

100211102200021 is an equidigital number, since it uses as much as digits as its factorization.

100211102200021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100211102200021 its reverse (120002201112001), we get a palindrome (220213303312022).

The spelling of 100211102200021 in words is "one hundred trillion, two hundred eleven billion, one hundred two million, two hundred thousand, twenty-one".