220020220091 has 8 divisors (see below), whose sum is σ = 251475805440. Its totient is φ = 188570666088.

The previous prime is 220020220087. The next prime is 220020220093. The reversal of 220020220091 is 190022020022.

220020220091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 220020220091 - 2² = 220020220087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220020220093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429391 + ... + 1575816.

It is an arithmetic number, because the mean of its divisors is an integer number (31434475680).

Almost surely, 2^220020220091 is an apocalyptic number.

220020220091 is a deficient number, since it is larger than the sum of its proper divisors (31455585349).

220020220091 is a wasteful number, since it uses less digits than its factorization.

220020220091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015673.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 220020220091 in words is "two hundred twenty billion, twenty million, two hundred twenty thousand, ninety-one".