221033420107 has 4 divisors (see below), whose sum is σ = 226424479176. Its totient is φ = 215642361040.

The previous prime is 221033420087. The next prime is 221033420131. The reversal of 221033420107 is 701024330122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221033420107 - 2¹⁹ = 221032895819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221033420507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695529473 + ... + 2695529554.

It is an arithmetic number, because the mean of its divisors is an integer number (56606119794).

Almost surely, 2^221033420107 is an apocalyptic number.

221033420107 is a deficient number, since it is larger than the sum of its proper divisors (5391059069).

221033420107 is an equidigital number, since it uses as much as digits as its factorization.

221033420107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5391059068.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 221033420107 its reverse (701024330122), we get a palindrome (922057750229).

The spelling of 221033420107 in words is "two hundred twenty-one billion, thirty-three million, four hundred twenty thousand, one hundred seven".