23555202220 has 24 divisors (see below), whose sum is σ = 53962827408. Its totient is φ = 8565528000.

The previous prime is 23555202103. The next prime is 23555202247. The reversal of 23555202220 is 2220255532.

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, 53534331 + ... + 53534770.

It is an arithmetic number, because the mean of its divisors is an integer number (2248451142).

Almost surely, 2^23555202220 is an apocalyptic number.

23555202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23555202220 is an abundant number, since it is smaller than the sum of its proper divisors (30407625188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23555202220 is a wasteful number, since it uses less digits than its factorization.

23555202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107069121 (or 107069119 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 23555202220 its reverse (2220255532), we get a palindrome (25775457752).

The spelling of 23555202220 in words is "twenty-three billion, five hundred fifty-five million, two hundred two thousand, two hundred twenty".