221123113435 has 8 divisors (see below), whose sum is σ = 303254555616. Its totient is φ = 151627277760.

The previous prime is 221123113403. The next prime is 221123113447. The reversal of 221123113435 is 534311321122.

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

It is not a de Polignac number, because 221123113435 - 2⁵ = 221123113403 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3158901586 + ... + 3158901655.

It is an arithmetic number, because the mean of its divisors is an integer number (37906819452).

Almost surely, 2^221123113435 is an apocalyptic number.

221123113435 is a deficient number, since it is larger than the sum of its proper divisors (82131442181).

221123113435 is an equidigital number, since it uses as much as digits as its factorization.

221123113435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317803253.

The product of its digits is 4320, while the sum is 28.

Adding to 221123113435 its reverse (534311321122), we get a palindrome (755434434557).

The spelling of 221123113435 in words is "two hundred twenty-one billion, one hundred twenty-three million, one hundred thirteen thousand, four hundred thirty-five".