221242415514 has 32 divisors (see below), whose sum is σ = 446223320064. Its totient is φ = 73126859520.

The previous prime is 221242415509. The next prime is 221242415549. The reversal of 221242415514 is 415514242122.

221242415514 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50302 + ... + 667094.

It is an arithmetic number, because the mean of its divisors is an integer number (13944478752).

Almost surely, 2^221242415514 is an apocalyptic number.

221242415514 is an abundant number, since it is smaller than the sum of its proper divisors (224980904550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221242415514 is a wasteful number, since it uses less digits than its factorization.

221242415514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617302.

The product of its digits is 25600, while the sum is 33.

Adding to 221242415514 its reverse (415514242122), we get a palindrome (636756657636).

It can be divided in two parts, 221242 and 415514, that added together give a triangular number (636756 = T₁₁₂₈).

The spelling of 221242415514 in words is "two hundred twenty-one billion, two hundred forty-two million, four hundred fifteen thousand, five hundred fourteen".