21000220232200 has 96 divisors (see below), whose sum is σ = 53558473288320. Its totient is φ = 7594253280000.

The previous prime is 21000220232183. The next prime is 21000220232339. The reversal of 21000220232200 is 223202200012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25970736 + ... + 26767135.

It is an arithmetic number, because the mean of its divisors is an integer number (557900763420).

Almost surely, 2^{21000220232200} is an apocalyptic number.

21000220232200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21000220232200 is an abundant number, since it is smaller than the sum of its proper divisors (32558253056120).

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

21000220232200 is a wasteful number, since it uses less digits than its factorization.

21000220232200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52738079 (or 52738070 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 21000220232200 its reverse (223202200012), we get a palindrome (21223422432212).

The spelling of 21000220232200 in words is "twenty-one trillion, two hundred twenty million, two hundred thirty-two thousand, two hundred".