221013131233 has 8 divisors (see below), whose sum is σ = 223334848352. Its totient is φ = 218692296576.

The previous prime is 221013131219. The next prime is 221013131279. The reversal of 221013131233 is 332131310122.

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 221013131233 - 2¹³ = 221013123041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221013131203) 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, 289066 + ... + 724972.

It is an arithmetic number, because the mean of its divisors is an integer number (27916856044).

Almost surely, 2^221013131233 is an apocalyptic number.

It is an amenable number.

221013131233 is a deficient number, since it is larger than the sum of its proper divisors (2321717119).

221013131233 is an equidigital number, since it uses as much as digits as its factorization.

221013131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441231.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 221013131233 its reverse (332131310122), we get a palindrome (553144441355).

The spelling of 221013131233 in words is "two hundred twenty-one billion, thirteen million, one hundred thirty-one thousand, two hundred thirty-three".