221120554703 has 4 divisors (see below), whose sum is σ = 230734491888. Its totient is φ = 211506617520.

The previous prime is 221120554637. The next prime is 221120554717. The reversal of 221120554703 is 307455021122.

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 221120554703 - 2¹⁴ = 221120538319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221120554703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120554763) 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, 4806968558 + ... + 4806968603.

It is an arithmetic number, because the mean of its divisors is an integer number (57683622972).

Almost surely, 2^221120554703 is an apocalyptic number.

221120554703 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221120554703 is a deficient number, since it is larger than the sum of its proper divisors (9613937185).

221120554703 is an equidigital number, since it uses as much as digits as its factorization.

221120554703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9613937184.

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 221120554703 its reverse (307455021122), we get a palindrome (528575575825).

The spelling of 221120554703 in words is "two hundred twenty-one billion, one hundred twenty million, five hundred fifty-four thousand, seven hundred three".