220220000091 has 48 divisors (see below), whose sum is σ = 397345638144. Its totient is φ = 114426240192.

The previous prime is 220220000071. The next prime is 220220000131. The reversal of 220220000091 is 190000022022.

It is not a de Polignac number, because 220220000091 - 2¹⁰ = 220219999067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220220000071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1951761 + ... + 2061506.

It is an arithmetic number, because the mean of its divisors is an integer number (8278034128).

Almost surely, 2^220220000091 is an apocalyptic number.

220220000091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220220000091 is a deficient number, since it is larger than the sum of its proper divisors (177125638053).

220220000091 is a wasteful number, since it uses less digits than its factorization.

220220000091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013360 (or 4013357 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The spelling of 220220000091 in words is "two hundred twenty billion, two hundred twenty million, ninety-one", and thus it is an aban number.