11021002012021 has 4 divisors (see below), whose sum is σ = 11176227392544. Its totient is φ = 10865776631500.

The previous prime is 11021002012003. The next prime is 11021002012049. The reversal of 11021002012021 is 12021020012011.

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 11021002012021 - 2¹³ = 11021002003829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021002011992 and 11021002012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021002010021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77612690155 + ... + 77612690296.

It is an arithmetic number, because the mean of its divisors is an integer number (2794056848136).

Almost surely, 2^{11021002012021} is an apocalyptic number.

It is an amenable number.

11021002012021 is a deficient number, since it is larger than the sum of its proper divisors (155225380523).

11021002012021 is an equidigital number, since it uses as much as digits as its factorization.

11021002012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155225380522.

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

Adding to 11021002012021 its reverse (12021020012011), we get a palindrome (23042022024032).

The spelling of 11021002012021 in words is "eleven trillion, twenty-one billion, two million, twelve thousand, twenty-one".