11112011010021 has 64 divisors (see below), whose sum is σ = 15800085504000. Its totient is φ = 6934010334720.

The previous prime is 11112011010013. The next prime is 11112011010047. The reversal of 11112011010021 is 12001011021111.

It is not a de Polignac number, because 11112011010021 - 2³ = 11112011010013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112011009979 and 11112011010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112015010021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 985189060 + ... + 985200338.

It is an arithmetic number, because the mean of its divisors is an integer number (246876336000).

Almost surely, 2^{11112011010021} is an apocalyptic number.

It is an amenable number.

11112011010021 is a deficient number, since it is larger than the sum of its proper divisors (4688074493979).

11112011010021 is a wasteful number, since it uses less digits than its factorization.

11112011010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13074.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11112011010021 its reverse (12001011021111), we get a palindrome (23113022031132).

The spelling of 11112011010021 in words is "eleven trillion, one hundred twelve billion, eleven million, ten thousand, twenty-one".