220401820000 has 60 divisors (see below), whose sum is σ = 542221586676. Its totient is φ = 88160720000.

The previous prime is 220401819983. The next prime is 220401820013. The reversal of 220401820000 is 28104022.

It is a self number, because there is not a number n which added to its sum of digits gives 220401820000.

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 9 ways as a sum of consecutive naturals, for example, 5490046 + ... + 5530045.

Almost surely, 2^220401820000 is an apocalyptic number.

220401820000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220401820000 is an abundant number, since it is smaller than the sum of its proper divisors (321819766676).

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

220401820000 is an equidigital number, since it uses as much as digits as its factorization.

220401820000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020121 (or 11020098 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220401820000 its reverse (28104022), we get a palindrome (220429924022).

It can be divided in two parts, 220401 and 820000, that added together give a palindrome (1040401).

The spelling of 220401820000 in words is "two hundred twenty billion, four hundred one million, eight hundred twenty thousand".