22021231002241 has 2 divisors, whose sum is σ = 22021231002242. Its totient is φ = 22021231002240.

The previous prime is 22021231002217. The next prime is 22021231002283. The reversal of 22021231002241 is 14220013212022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18203056382016 + 3818174620225 = 4266504^2 + 1954015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021231002241 is a prime.

It is a super-2 number, since 2×22021231002241² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22021231002941) 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, 11010615501120 + 11010615501121.

It is an arithmetic number, because the mean of its divisors is an integer number (11010615501121).

Almost surely, 2^{22021231002241} is an apocalyptic number.

It is an amenable number.

22021231002241 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021231002241 is an equidigital number, since it uses as much as digits as its factorization.

22021231002241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 22021231002241 its reverse (14220013212022), we get a palindrome (36241244214263).

The spelling of 22021231002241 in words is "twenty-two trillion, twenty-one billion, two hundred thirty-one million, two thousand, two hundred forty-one".