220101010020 has 120 divisors (see below), whose sum is σ = 706522569984. Its totient is φ = 57328617024.

The previous prime is 220101009991. The next prime is 220101010043. The reversal of 220101010020 is 20010101022.

220101010020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220101010020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 220101009984 and 220101010011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1510164 + ... + 1649483.

Almost surely, 2^220101010020 is an apocalyptic number.

220101010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220101010020 is an abundant number, since it is smaller than the sum of its proper divisors (486421559964).

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

220101010020 is a wasteful number, since it uses less digits than its factorization.

220101010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159711 (or 3159700 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 220101010020 its reverse (20010101022), we get a palindrome (240111111042).

The spelling of 220101010020 in words is "two hundred twenty billion, one hundred one million, ten thousand, twenty".