2011002011021 has 8 divisors (see below), whose sum is σ = 2015547985920. Its totient is φ = 2006460685008.

The previous prime is 2011002010991. The next prime is 2011002011023. The reversal of 2011002011021 is 1201102001102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011002011021 - 2³⁴ = 1993822141837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011002010993 and 2011002011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011002011023) 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 7 ways as a sum of consecutive naturals, for example, 295361 + ... + 2027126.

It is an arithmetic number, because the mean of its divisors is an integer number (251943498240).

Almost surely, 2^{2011002011021} is an apocalyptic number.

It is an amenable number.

2011002011021 is a deficient number, since it is larger than the sum of its proper divisors (4545974899).

2011002011021 is a wasteful number, since it uses less digits than its factorization.

2011002011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324443.

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

Adding to 2011002011021 its reverse (1201102001102), we get a palindrome (3212104012123).

The spelling of 2011002011021 in words is "two trillion, eleven billion, two million, eleven thousand, twenty-one".