2201020312021 has 2 divisors, whose sum is σ = 2201020312022. Its totient is φ = 2201020312020.

The previous prime is 2201020312009. The next prime is 2201020312027. The reversal of 2201020312021 is 1202130201022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1755916512100 + 445103799921 = 1325110^2 + 667161^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201020312021 - 2⁵ = 2201020311989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201020311986 and 2201020312004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201020312027) 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, 1100510156010 + 1100510156011.

It is an arithmetic number, because the mean of its divisors is an integer number (1100510156011).

Almost surely, 2^{2201020312021} is an apocalyptic number.

It is an amenable number.

2201020312021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201020312021 is an equidigital number, since it uses as much as digits as its factorization.

2201020312021 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 16.

Adding to 2201020312021 its reverse (1202130201022), we get a palindrome (3403150513043).

The spelling of 2201020312021 in words is "two trillion, two hundred one billion, twenty million, three hundred twelve thousand, twenty-one".