2211221023001 has 2 divisors, whose sum is σ = 2211221023002. Its totient is φ = 2211221023000.

The previous prime is 2211221022991. The next prime is 2211221023007. The reversal of 2211221023001 is 1003201221122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1879301007376 + 331920015625 = 1370876^2 + 576125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211221023001 - 2³⁴ = 2194041153817 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211221023007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105610511500 + 1105610511501.

It is an arithmetic number, because the mean of its divisors is an integer number (1105610511501).

Almost surely, 2^{2211221023001} is an apocalyptic number.

It is an amenable number.

2211221023001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211221023001 is an equidigital number, since it uses as much as digits as its factorization.

2211221023001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2211221023001 its reverse (1003201221122), we get a palindrome (3214422244123).

The spelling of 2211221023001 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, twenty-three thousand, one".