21622475341 has 2 divisors, whose sum is σ = 21622475342. Its totient is φ = 21622475340.

The previous prime is 21622475339. The next prime is 21622475393. The reversal of 21622475341 is 14357422612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12089882116 + 9532593225 = 109954^2 + 97635^2 .

It is a cyclic number.

It is not a de Polignac number, because 21622475341 - 2¹ = 21622475339 is a prime.

It is a super-3 number, since 3×21622475341³ (a number of 32 digits) contains 333 as substring.

Together with 21622475339, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21622475341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21622478341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10811237670 + 10811237671.

It is an arithmetic number, because the mean of its divisors is an integer number (10811237671).

Almost surely, 2^21622475341 is an apocalyptic number.

It is an amenable number.

21622475341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21622475341 is an equidigital number, since it uses as much as digits as its factorization.

21622475341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

Adding to 21622475341 its reverse (14357422612), we get a palindrome (35979897953).

The spelling of 21622475341 in words is "twenty-one billion, six hundred twenty-two million, four hundred seventy-five thousand, three hundred forty-one".