1021224421201 has 2 divisors, whose sum is σ = 1021224421202. Its totient is φ = 1021224421200.

The previous prime is 1021224421199. The next prime is 1021224421207. The reversal of 1021224421201 is 1021244221201.

1021224421201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 930954819600 + 90269601601 = 964860^2 + 300449^2 .

It is an emirp because it is prime and its reverse (1021244221201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021224421201 - 2¹ = 1021224421199 is a prime.

Together with 1021224421199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1021224421207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510612210600 + 510612210601.

It is an arithmetic number, because the mean of its divisors is an integer number (510612210601).

Almost surely, 2^{1021224421201} is an apocalyptic number.

It is an amenable number.

1021224421201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021224421201 is an equidigital number, since it uses as much as digits as its factorization.

1021224421201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1021224421201 its reverse (1021244221201), we get a palindrome (2042468642402).

The spelling of 1021224421201 in words is "one trillion, twenty-one billion, two hundred twenty-four million, four hundred twenty-one thousand, two hundred one".