220021332144000 has 128 divisors (see below), whose sum is σ = 729370716216480. Its totient is φ = 58672355225600.

The previous prime is 220021332143939. The next prime is 220021332144049. The reversal of 220021332144000 is 441233120022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 2291840877 + ... + 2291936876.

Almost surely, 2^{220021332144000} is an apocalyptic number.

220021332144000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220021332144000 is an abundant number, since it is smaller than the sum of its proper divisors (509349384072480).

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

220021332144000 is an equidigital number, since it uses as much as digits as its factorization.

220021332144000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583777785 (or 4583777763 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 220021332144000 its reverse (441233120022), we get a palindrome (220462565264022).

The spelling of 220021332144000 in words is "two hundred twenty trillion, twenty-one billion, three hundred thirty-two million, one hundred forty-four thousand".