2222011100021 has 4 divisors (see below), whose sum is σ = 2222021110944. Its totient is φ = 2222001089100.

The previous prime is 2222011099991. The next prime is 2222011100047. The reversal of 2222011100021 is 1200011102222.

2222011100021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2222011100021 - 2¹⁴ = 2222011083637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222011099969 and 2222011100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222011100081) 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, 4664795 + ... + 5119016.

It is an arithmetic number, because the mean of its divisors is an integer number (555505277736).

Almost surely, 2^{2222011100021} is an apocalyptic number.

It is an amenable number.

2222011100021 is a deficient number, since it is larger than the sum of its proper divisors (10010923).

2222011100021 is an equidigital number, since it uses as much as digits as its factorization.

2222011100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010922.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2222011100021 its reverse (1200011102222), we get a palindrome (3422022202243).

The spelling of 2222011100021 in words is "two trillion, two hundred twenty-two billion, eleven million, one hundred thousand, twenty-one".