221524240031106 has 16 divisors (see below), whose sum is σ = 443048933560800. Its totient is φ = 73841337760608.

The previous prime is 221524240031077. The next prime is 221524240031119. The reversal of 221524240031106 is 601130042425122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12372316 + ... + 24415623.

It is an arithmetic number, because the mean of its divisors is an integer number (27690558347550).

Almost surely, 2^{221524240031106} is an apocalyptic number.

221524240031106 is an abundant number, since it is smaller than the sum of its proper divisors (221524693529694).

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

221524240031106 is a wasteful number, since it uses less digits than its factorization.

221524240031106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37791553.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 221524240031106 its reverse (601130042425122), we get a palindrome (822654282456228).

The spelling of 221524240031106 in words is "two hundred twenty-one trillion, five hundred twenty-four billion, two hundred forty million, thirty-one thousand, one hundred six".