220640332000 has 96 divisors (see below), whose sum is σ = 591396440544. Its totient is φ = 80232832000.

The previous prime is 220640331971. The next prime is 220640332039. The reversal of 220640332000 is 233046022.

It is a happy number.

It is a super-2 number, since 2×220640332000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2463277 + ... + 2551276.

It is an arithmetic number, because the mean of its divisors is an integer number (6160379589).

Almost surely, 2^220640332000 is an apocalyptic number.

220640332000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220640332000 is an abundant number, since it is smaller than the sum of its proper divisors (370756108544).

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

220640332000 is a wasteful number, since it uses less digits than its factorization.

220640332000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014589 (or 5014571 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 220640332000 its reverse (233046022), we get a palindrome (220873378022).

The spelling of 220640332000 in words is "two hundred twenty billion, six hundred forty million, three hundred thirty-two thousand".