22021606103507 has 2 divisors, whose sum is σ = 22021606103508. Its totient is φ = 22021606103506.

The previous prime is 22021606103489. The next prime is 22021606103513. The reversal of 22021606103507 is 70530160612022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22021606103507 - 2¹⁴ = 22021606087123 is a prime.

It is a super-2 number, since 2×22021606103507² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22021600103507) 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, 11010803051753 + 11010803051754.

It is an arithmetic number, because the mean of its divisors is an integer number (11010803051754).

Almost surely, 2^{22021606103507} is an apocalyptic number.

22021606103507 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021606103507 is an equidigital number, since it uses as much as digits as its factorization.

22021606103507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 22021606103507 its reverse (70530160612022), we get a palindrome (92551766715529).

The spelling of 22021606103507 in words is "twenty-two trillion, twenty-one billion, six hundred six million, one hundred three thousand, five hundred seven".