21441521151334 has 32 divisors (see below), whose sum is σ = 33603345720000. Its totient is φ = 10241598411264.

The previous prime is 21441521151319. The next prime is 21441521151341. The reversal of 21441521151334 is 43315112514412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21441521151293 and 21441521151302.

It is a congruent number.

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, 154777852 + ... + 154916320.

It is an arithmetic number, because the mean of its divisors is an integer number (1050104553750).

Almost surely, 2^{21441521151334} is an apocalyptic number.

21441521151334 is a deficient number, since it is larger than the sum of its proper divisors (12161824568666).

21441521151334 is a wasteful number, since it uses less digits than its factorization.

21441521151334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142752.

The product of its digits is 57600, while the sum is 37.

Adding to 21441521151334 its reverse (43315112514412), we get a palindrome (64756633665746).

The spelling of 21441521151334 in words is "twenty-one trillion, four hundred forty-one billion, five hundred twenty-one million, one hundred fifty-one thousand, three hundred thirty-four".