221120010115 has 8 divisors (see below), whose sum is σ = 274493805840. Its totient is φ = 170796145632.

The previous prime is 221120010113. The next prime is 221120010119. The reversal of 221120010115 is 511010021122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221120010115 - 2¹ = 221120010113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221120010113) by changing a digit.

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, 762482649 + ... + 762482938.

It is an arithmetic number, because the mean of its divisors is an integer number (34311725730).

Almost surely, 2^221120010115 is an apocalyptic number.

221120010115 is a deficient number, since it is larger than the sum of its proper divisors (53373795725).

221120010115 is a wasteful number, since it uses less digits than its factorization.

221120010115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524965621.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 221120010115 its reverse (511010021122), we get a palindrome (732130031237).

The spelling of 221120010115 in words is "two hundred twenty-one billion, one hundred twenty million, ten thousand, one hundred fifteen".