20210112020 has 24 divisors (see below), whose sum is σ = 48504269184. Its totient is φ = 6929181216.

The previous prime is 20210112017. The next prime is 20210112031. The reversal of 20210112020 is 2021101202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20210111992 and 20210112010.

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 7 ways as a sum of consecutive naturals, for example, 72178832 + ... + 72179111.

It is an arithmetic number, because the mean of its divisors is an integer number (2021011216).

Almost surely, 2^20210112020 is an apocalyptic number.

20210112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210112020 is an abundant number, since it is smaller than the sum of its proper divisors (28294157164).

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

20210112020 is a wasteful number, since it uses less digits than its factorization.

20210112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144357959 (or 144357957 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20210112020 its reverse (2021101202), we get a palindrome (22231213222).

The spelling of 20210112020 in words is "twenty billion, two hundred ten million, one hundred twelve thousand, twenty".