21141352522 has 32 divisors (see below), whose sum is σ = 32972914944. Its totient is φ = 10157976000.

The previous prime is 21141352513. The next prime is 21141352549. The reversal of 21141352522 is 22525314112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3218013 + ... + 3224575.

It is an arithmetic number, because the mean of its divisors is an integer number (1030403592).

Almost surely, 2^21141352522 is an apocalyptic number.

21141352522 is a deficient number, since it is larger than the sum of its proper divisors (11831562422).

21141352522 is a wasteful number, since it uses less digits than its factorization.

21141352522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134.

The product of its digits is 4800, while the sum is 28.

Adding to 21141352522 its reverse (22525314112), we get a palindrome (43666666634).

The spelling of 21141352522 in words is "twenty-one billion, one hundred forty-one million, three hundred fifty-two thousand, five hundred twenty-two".