2222211121001 has 4 divisors (see below), whose sum is σ = 2264139632772. Its totient is φ = 2180282609232.

The previous prime is 2222211120967. The next prime is 2222211121033. The reversal of 2222211121001 is 1001211122222.

2222211121001 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.

It can be written as a sum of positive squares in 2 ways, for example, as 589246605376 + 1632964515625 = 767624^2 + 1277875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222211121001 - 2¹⁰ = 2222211119977 is a prime.

It is a super-3 number, since 3×2222211121001³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2222211121051) 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, 20964255806 + ... + 20964255911.

It is an arithmetic number, because the mean of its divisors is an integer number (566034908193).

Almost surely, 2^{2222211121001} is an apocalyptic number.

It is an amenable number.

2222211121001 is a deficient number, since it is larger than the sum of its proper divisors (41928511771).

2222211121001 is an equidigital number, since it uses as much as digits as its factorization.

2222211121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41928511770.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2222211121001 its reverse (1001211122222), we get a palindrome (3223422243223).

The spelling of 2222211121001 in words is "two trillion, two hundred twenty-two billion, two hundred eleven million, one hundred twenty-one thousand, one".