220031221133 has 4 divisors (see below), whose sum is σ = 220057857888. Its totient is φ = 220004584380.

The previous prime is 220031221103. The next prime is 220031221327. The reversal of 220031221133 is 331122130022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220031221133 - 2¹⁰ = 220031220109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220031221103) 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 3 ways as a sum of consecutive naturals, for example, 13305983 + ... + 13322508.

It is an arithmetic number, because the mean of its divisors is an integer number (55014464472).

Almost surely, 2^220031221133 is an apocalyptic number.

It is an amenable number.

220031221133 is a deficient number, since it is larger than the sum of its proper divisors (26636755).

220031221133 is an equidigital number, since it uses as much as digits as its factorization.

220031221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26636754.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 220031221133 its reverse (331122130022), we get a palindrome (551153351155).

The spelling of 220031221133 in words is "two hundred twenty billion, thirty-one million, two hundred twenty-one thousand, one hundred thirty-three".