100011110212021 has 2 divisors, whose sum is σ = 100011110212022. Its totient is φ = 100011110212020.

The previous prime is 100011110211977. The next prime is 100011110212033. The reversal of 100011110212021 is 120212011110001.

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., 51729610828900 + 48281499383121 = 7192330^2 + 6948489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100011110212021 is a prime.

It is a super-3 number, since 3×100011110212021³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 100011110211992 and 100011110212010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100011110212721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005555106010 + 50005555106011.

It is an arithmetic number, because the mean of its divisors is an integer number (50005555106011).

Almost surely, 2^{100011110212021} is an apocalyptic number.

It is an amenable number.

100011110212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

100011110212021 is an equidigital number, since it uses as much as digits as its factorization.

100011110212021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100011110212021 its reverse (120212011110001), we get a palindrome (220223121322022).

The spelling of 100011110212021 in words is "one hundred trillion, eleven billion, one hundred ten million, two hundred twelve thousand, twenty-one".