21441515250214 has 16 divisors (see below), whose sum is σ = 32290770772800. Its totient is φ = 10678001549544.

The previous prime is 21441515250161. The next prime is 21441515250241. The reversal of 21441515250214 is 41205251514412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18578512 + ... + 19698835.

It is an arithmetic number, because the mean of its divisors is an integer number (2018173173300).

Almost surely, 2^{21441515250214} is an apocalyptic number.

21441515250214 is a deficient number, since it is larger than the sum of its proper divisors (10849255522586).

21441515250214 is a wasteful number, since it uses less digits than its factorization.

21441515250214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38278467.

The product of its (nonzero) digits is 64000, while the sum is 37.

Adding to 21441515250214 its reverse (41205251514412), we get a palindrome (62646766764626).

The spelling of 21441515250214 in words is "twenty-one trillion, four hundred forty-one billion, five hundred fifteen million, two hundred fifty thousand, two hundred fourteen".