11000012012021 has 4 divisors (see below), whose sum is σ = 11478273403872. Its totient is φ = 10521750620172.

The previous prime is 11000012011999. The next prime is 11000012012089. The reversal of 11000012012021 is 12021021000011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11000012012021 - 2²² = 11000007817717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11000012011993 and 11000012012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000012032021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239130695891 + ... + 239130695936.

It is an arithmetic number, because the mean of its divisors is an integer number (2869568350968).

Almost surely, 2^{11000012012021} is an apocalyptic number.

It is an amenable number.

11000012012021 is a deficient number, since it is larger than the sum of its proper divisors (478261391851).

11000012012021 is an equidigital number, since it uses as much as digits as its factorization.

11000012012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478261391850.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11000012012021 its reverse (12021021000011), we get a palindrome (23021033012032).

The spelling of 11000012012021 in words is "eleven trillion, twelve million, twelve thousand, twenty-one".