221100132223220 has 24 divisors (see below), whose sum is σ = 488747660704800. Its totient is φ = 83785313263392.

The previous prime is 221100132223219. The next prime is 221100132223241. The reversal of 221100132223220 is 22322231001122.

It is a happy number.

221100132223220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 290921226230 + ... + 290921226989.

It is an arithmetic number, because the mean of its divisors is an integer number (20364485862700).

Almost surely, 2^{221100132223220} is an apocalyptic number.

221100132223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221100132223220 is an abundant number, since it is smaller than the sum of its proper divisors (267647528481580).

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

221100132223220 is a wasteful number, since it uses less digits than its factorization.

221100132223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581842453247 (or 581842453245 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 221100132223220 its reverse (22322231001122), we get a palindrome (243422363224342).

The spelling of 221100132223220 in words is "two hundred twenty-one trillion, one hundred billion, one hundred thirty-two million, two hundred twenty-three thousand, two hundred twenty".