220471421100 has 144 divisors (see below), whose sum is σ = 744537013248. Its totient is φ = 49321244160.

The previous prime is 220471421087. The next prime is 220471421119. The reversal of 220471421100 is 1124174022.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1018177 + ... + 1215576.

Almost surely, 2^220471421100 is an apocalyptic number.

220471421100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220471421100 is an abundant number, since it is smaller than the sum of its proper divisors (524065592148).

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

220471421100 is a wasteful number, since it uses less digits than its factorization.

220471421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233824 (or 2233817 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

Adding to 220471421100 its reverse (1124174022), we get a palindrome (221595595122).

The spelling of 220471421100 in words is "two hundred twenty billion, four hundred seventy-one million, four hundred twenty-one thousand, one hundred".