11021112001021 has 16 divisors (see below), whose sum is σ = 11298560410368. Its totient is φ = 10744078172800.

The previous prime is 11021112001013. The next prime is 11021112001069. The reversal of 11021112001021 is 12010021112011.

It is a happy number.

11021112001021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11021112001021 - 2³ = 11021112001013 is a prime.

It is a super-4 number, since 4×11021112001021⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021112000992 and 11021112001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021112061021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334636071 + ... + 334669003.

It is an arithmetic number, because the mean of its divisors is an integer number (706160025648).

Almost surely, 2^{11021112001021} is an apocalyptic number.

It is an amenable number.

11021112001021 is a deficient number, since it is larger than the sum of its proper divisors (277448409347).

11021112001021 is a wasteful number, since it uses less digits than its factorization.

11021112001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38972.

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

Adding to 11021112001021 its reverse (12010021112011), we get a palindrome (23031133113032).

The spelling of 11021112001021 in words is "eleven trillion, twenty-one billion, one hundred twelve million, one thousand, twenty-one".