2212442443021 has 2 divisors, whose sum is σ = 2212442443022. Its totient is φ = 2212442443020.

The previous prime is 2212442442883. The next prime is 2212442443027. The reversal of 2212442443021 is 1203442442122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1319821857225 + 892620585796 = 1148835^2 + 944786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212442443021 - 2¹¹ = 2212442440973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212442443027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106221221510 + 1106221221511.

It is an arithmetic number, because the mean of its divisors is an integer number (1106221221511).

Almost surely, 2^{2212442443021} is an apocalyptic number.

It is an amenable number.

2212442443021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212442443021 is an equidigital number, since it uses as much as digits as its factorization.

2212442443021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 2212442443021 its reverse (1203442442122), we get a palindrome (3415884885143).

The spelling of 2212442443021 in words is "two trillion, two hundred twelve billion, four hundred forty-two million, four hundred forty-three thousand, twenty-one".