220021120002020 has 48 divisors (see below), whose sum is σ = 472033661218560. Its totient is φ = 86125439801856.

The previous prime is 220021120001989. The next prime is 220021120002029. The reversal of 220021120002020 is 20200021120022.

220021120002020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220021120001986 and 220021120002004.

It is not an unprimeable number, because it can be changed into a prime (220021120002029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615989042 + ... + 616346121.

It is an arithmetic number, because the mean of its divisors is an integer number (9834034608720).

Almost surely, 2^{220021120002020} is an apocalyptic number.

220021120002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220021120002020 is an abundant number, since it is smaller than the sum of its proper divisors (252012541216540).

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

220021120002020 is a wasteful number, since it uses less digits than its factorization.

220021120002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232335364 (or 1232335362 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220021120002020 its reverse (20200021120022), we get a palindrome (240221141122042).

The spelling of 220021120002020 in words is "two hundred twenty trillion, twenty-one billion, one hundred twenty million, two thousand, twenty".