11012112112021 has 2 divisors, whose sum is σ = 11012112112022. Its totient is φ = 11012112112020.

The previous prime is 11012112112009. The next prime is 11012112112051. The reversal of 11012112112021 is 12021121121011.

11012112112021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11007199644100 + 4912467921 = 3317710^2 + 70089^2 .

It is an emirp because it is prime and its reverse (12021121121011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11012112112021 - 2⁷ = 11012112111893 is a prime.

It is a super-2 number, since 2×11012112112021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11012112111986 and 11012112112004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11012112112051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506056056010 + 5506056056011.

It is an arithmetic number, because the mean of its divisors is an integer number (5506056056011).

Almost surely, 2^{11012112112021} is an apocalyptic number.

It is an amenable number.

11012112112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012112112021 is an equidigital number, since it uses as much as digits as its factorization.

11012112112021 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 16.

Adding to 11012112112021 its reverse (12021121121011), we get a palindrome (23033233233032).

The spelling of 11012112112021 in words is "eleven trillion, twelve billion, one hundred twelve million, one hundred twelve thousand, twenty-one".