221100020022200 has 96 divisors (see below), whose sum is σ = 561248594040960. Its totient is φ = 80334266313600.

The previous prime is 221100020022181. The next prime is 221100020022209. The reversal of 221100020022200 is 2220020001122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100020022209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38396894 + ... + 43778093.

It is an arithmetic number, because the mean of its divisors is an integer number (5846339521260).

Almost surely, 2^{221100020022200} is an apocalyptic number.

221100020022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221100020022200 is an abundant number, since it is smaller than the sum of its proper divisors (340148574018760).

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

221100020022200 is a wasteful number, since it uses less digits than its factorization.

221100020022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82176237 (or 82176228 counting only the distinct ones).

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

Adding to 221100020022200 its reverse (2220020001122), we get a palindrome (223320040023322).

The spelling of 221100020022200 in words is "two hundred twenty-one trillion, one hundred billion, twenty million, twenty-two thousand, two hundred".