2211000022001 has 4 divisors (see below), whose sum is σ = 2287241402100. Its totient is φ = 2134758641904.

The previous prime is 2211000021929. The next prime is 2211000022003. The reversal of 2211000022001 is 1002200001122.

It is a happy number.

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 692350469776 + 1518649552225 = 832076^2 + 1232335^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211000022001 - 2²² = 2210995827697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211000022003) 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, 38120690006 + ... + 38120690063.

It is an arithmetic number, because the mean of its divisors is an integer number (571810350525).

Almost surely, 2^{2211000022001} is an apocalyptic number.

It is an amenable number.

2211000022001 is a deficient number, since it is larger than the sum of its proper divisors (76241380099).

2211000022001 is an equidigital number, since it uses as much as digits as its factorization.

2211000022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76241380098.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2211000022001 its reverse (1002200001122), we get a palindrome (3213200023123).

The spelling of 2211000022001 in words is "two trillion, two hundred eleven billion, twenty-two thousand, one".