22224101021 has 2 divisors, whose sum is σ = 22224101022. Its totient is φ = 22224101020.

The previous prime is 22224101017. The next prime is 22224101047. The reversal of 22224101021 is 12010142222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21324760900 + 899340121 = 146030^2 + 29989^2 .

It is a cyclic number.

It is not a de Polignac number, because 22224101021 - 2² = 22224101017 is a prime.

It is a super-2 number, since 2×22224101021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22224101321) 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, 11112050510 + 11112050511.

It is an arithmetic number, because the mean of its divisors is an integer number (11112050511).

Almost surely, 2^22224101021 is an apocalyptic number.

It is an amenable number.

22224101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22224101021 is an equidigital number, since it uses as much as digits as its factorization.

22224101021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22224101021 its reverse (12010142222), we get a palindrome (34234243243).

The spelling of 22224101021 in words is "twenty-two billion, two hundred twenty-four million, one hundred one thousand, twenty-one".