2011202221001 has 4 divisors (see below), whose sum is σ = 2049149432772. Its totient is φ = 1973255009232.

The previous prime is 2011202220961. The next prime is 2011202221019. The reversal of 2011202221001 is 1001222021102.

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 998560518400 + 1012641702601 = 999280^2 + 1006301^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011202221001 - 2³⁴ = 1994022351817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2011202221201) 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 3 ways as a sum of consecutive naturals, for example, 18973605806 + ... + 18973605911.

It is an arithmetic number, because the mean of its divisors is an integer number (512287358193).

Almost surely, 2^{2011202221001} is an apocalyptic number.

It is an amenable number.

2011202221001 is a deficient number, since it is larger than the sum of its proper divisors (37947211771).

2011202221001 is an equidigital number, since it uses as much as digits as its factorization.

2011202221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37947211770.

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

Adding to 2011202221001 its reverse (1001222021102), we get a palindrome (3012424242103).

The spelling of 2011202221001 in words is "two trillion, eleven billion, two hundred two million, two hundred twenty-one thousand, one".