221020231333200 has 120 divisors (see below), whose sum is σ = 762463126299168. Its totient is φ = 54404980016640.

The previous prime is 221020231333193. The next prime is 221020231333241. The reversal of 221020231333200 is 2333132020122.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 7083966174 + ... + 7083997373.

Almost surely, 2^{221020231333200} is an apocalyptic number.

221020231333200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221020231333200 is an abundant number, since it is smaller than the sum of its proper divisors (541442894965968).

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

221020231333200 is a wasteful number, since it uses less digits than its factorization.

221020231333200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14167963581 (or 14167963570 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221020231333200 its reverse (2333132020122), we get a palindrome (223353363353322).

The spelling of 221020231333200 in words is "two hundred twenty-one trillion, twenty billion, two hundred thirty-one million, three hundred thirty-three thousand, two hundred".