221120001105 has 32 divisors (see below), whose sum is σ = 373427558400. Its totient is φ = 111419312832.

The previous prime is 221120001061. The next prime is 221120001149. The reversal of 221120001105 is 501100021122.

It is an interprime number because it is at equal distance from previous prime (221120001061) and next prime (221120001149).

It is not a de Polignac number, because 221120001105 - 2¹² = 221119997009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 952435 + ... + 1161624.

It is an arithmetic number, because the mean of its divisors is an integer number (11669611200).

Almost surely, 2^221120001105 is an apocalyptic number.

It is an amenable number.

221120001105 is a deficient number, since it is larger than the sum of its proper divisors (152307557295).

221120001105 is a wasteful number, since it uses less digits than its factorization.

221120001105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114453.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 221120001105 its reverse (501100021122), we get a palindrome (722220022227).

The spelling of 221120001105 in words is "two hundred twenty-one billion, one hundred twenty million, one thousand, one hundred five".