220221020200100 has 36 divisors (see below), whose sum is σ = 477934779008064. Its totient is φ = 88078239384480.

The previous prime is 220221020200091. The next prime is 220221020200121. The reversal of 220221020200100 is 1002020122022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126238064 + ... + 127970663.

Almost surely, 2^{220221020200100} is an apocalyptic number.

220221020200100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221020200100 is an abundant number, since it is smaller than the sum of its proper divisors (257713758807964).

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

220221020200100 is a wasteful number, since it uses less digits than its factorization.

220221020200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254217404 (or 254217397 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220221020200100 its reverse (1002020122022), we get a palindrome (221223040322122).

The spelling of 220221020200100 in words is "two hundred twenty trillion, two hundred twenty-one billion, twenty million, two hundred thousand, one hundred".