100112020012021 has 2 divisors, whose sum is σ = 100112020012022. Its totient is φ = 100112020012020.

The previous prime is 100112020011977. The next prime is 100112020012063. The reversal of 100112020012021 is 120210020211001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98189668264900 + 1922351747121 = 9909070^2 + 1386489^2 .

It is a cyclic number.

It is not a de Polignac number, because 100112020012021 - 2¹¹ = 100112020009973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100112020011992 and 100112020012010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100112020010021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50056010006010 + 50056010006011.

It is an arithmetic number, because the mean of its divisors is an integer number (50056010006011).

Almost surely, 2^{100112020012021} is an apocalyptic number.

It is an amenable number.

100112020012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

100112020012021 is an equidigital number, since it uses as much as digits as its factorization.

100112020012021 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 100112020012021 its reverse (120210020211001), we get a palindrome (220322040223022).

The spelling of 100112020012021 in words is "one hundred trillion, one hundred twelve billion, twenty million, twelve thousand, twenty-one".