21022022111963 has 2 divisors, whose sum is σ = 21022022111964. Its totient is φ = 21022022111962.

The previous prime is 21022022111899. The next prime is 21022022112023. The reversal of 21022022111963 is 36911122022012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21022022111963 - 2⁶ = 21022022111899 is a prime.

It is a super-2 number, since 2×21022022111963² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21022022101963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511011055981 + 10511011055982.

It is an arithmetic number, because the mean of its divisors is an integer number (10511011055982).

Almost surely, 2^{21022022111963} is an apocalyptic number.

21022022111963 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022022111963 is an equidigital number, since it uses as much as digits as its factorization.

21022022111963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

Adding to 21022022111963 its reverse (36911122022012), we get a palindrome (57933144133975).

The spelling of 21022022111963 in words is "twenty-one trillion, twenty-two billion, twenty-two million, one hundred eleven thousand, nine hundred sixty-three".