20331322000220 has 144 divisors (see below), whose sum is σ = 57368809485792. Its totient is φ = 5964268584960.

The previous prime is 20331322000219. The next prime is 20331322000243. The reversal of 20331322000220 is 2200022313302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20331322000192 and 20331322000201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55287989 + ... + 55654508.

It is an arithmetic number, because the mean of its divisors is an integer number (398394510318).

Almost surely, 2^{20331322000220} is an apocalyptic number.

20331322000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331322000220 is an abundant number, since it is smaller than the sum of its proper divisors (37037487485572).

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

20331322000220 is a wasteful number, since it uses less digits than its factorization.

20331322000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110942548 (or 110942539 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20331322000220 its reverse (2200022313302), we get a palindrome (22531344313522).

The spelling of 20331322000220 in words is "twenty trillion, three hundred thirty-one billion, three hundred twenty-two million, two hundred twenty", and thus it is an aban number.