21004141522 has 32 divisors (see below), whose sum is σ = 38885011200. Its totient is φ = 8286159168.

The previous prime is 21004141519. The next prime is 21004141549. The reversal of 21004141522 is 22514140012.

It is a super-2 number, since 2×21004141522² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21004141493 and 21004141502.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 95397 + ... + 226072.

It is an arithmetic number, because the mean of its divisors is an integer number (1215156600).

Almost surely, 2^21004141522 is an apocalyptic number.

21004141522 is a deficient number, since it is larger than the sum of its proper divisors (17880869678).

21004141522 is a wasteful number, since it uses less digits than its factorization.

21004141522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321850.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 21004141522 its reverse (22514140012), we get a palindrome (43518281534).

The spelling of 21004141522 in words is "twenty-one billion, four million, one hundred forty-one thousand, five hundred twenty-two".