20212011020 has 48 divisors (see below), whose sum is σ = 42601235040. Its totient is φ = 8055151104.

The previous prime is 20212011019. The next prime is 20212011037. The reversal of 20212011020 is 2011021202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20212010992 and 20212011010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7405016 + ... + 7407744.

It is an arithmetic number, because the mean of its divisors is an integer number (887525730).

Almost surely, 2^20212011020 is an apocalyptic number.

20212011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212011020 is an abundant number, since it is smaller than the sum of its proper divisors (22389224020).

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

20212011020 is a wasteful number, since it uses less digits than its factorization.

20212011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962 (or 3960 counting only the distinct ones).

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

Adding to 20212011020 its reverse (2011021202), we get a palindrome (22223032222).

The spelling of 20212011020 in words is "twenty billion, two hundred twelve million, eleven thousand, twenty".