21622135607311 has 2 divisors, whose sum is σ = 21622135607312. Its totient is φ = 21622135607310.

The previous prime is 21622135607309. The next prime is 21622135607321. The reversal of 21622135607311 is 11370653122612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21622135607311 - 2¹ = 21622135607309 is a prime.

Together with 21622135607309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21622135607321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10811067803655 + 10811067803656.

It is an arithmetic number, because the mean of its divisors is an integer number (10811067803656).

Almost surely, 2^{21622135607311} is an apocalyptic number.

21622135607311 is a deficient number, since it is larger than the sum of its proper divisors (1).

21622135607311 is an equidigital number, since it uses as much as digits as its factorization.

21622135607311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

Adding to 21622135607311 its reverse (11370653122612), we get a palindrome (32992788729923).

The spelling of 21622135607311 in words is "twenty-one trillion, six hundred twenty-two billion, one hundred thirty-five million, six hundred seven thousand, three hundred eleven".