221022220001200 has 30 divisors (see below), whose sum is σ = 531005883553844. Its totient is φ = 88408888000320.

The previous prime is 221022220001159. The next prime is 221022220001201. The reversal of 221022220001200 is 2100022220122.

221022220001200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (221022220001201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276277774602 + ... + 276277775401.

Almost surely, 2^{221022220001200} is an apocalyptic number.

221022220001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221022220001200 is an abundant number, since it is smaller than the sum of its proper divisors (309983663552644).

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

221022220001200 is a wasteful number, since it uses less digits than its factorization.

221022220001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552555550021 (or 552555550010 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221022220001200 its reverse (2100022220122), we get a palindrome (223122242221322).

The spelling of 221022220001200 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty million, one thousand, two hundred".