20210012020 has 48 divisors (see below), whose sum is σ = 46328679936. Its totient is φ = 7344432000.

The previous prime is 20210011999. The next prime is 20210012021. The reversal of 20210012020 is 2021001202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20210011988 and 20210012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210012021) 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, 328285 + ... + 384955.

It is an arithmetic number, because the mean of its divisors is an integer number (965180832).

Almost surely, 2^20210012020 is an apocalyptic number.

20210012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210012020 is an abundant number, since it is smaller than the sum of its proper divisors (26118667916).

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

20210012020 is a wasteful number, since it uses less digits than its factorization.

20210012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58312 (or 58310 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

20210012020 divided by its sum of digits (10) gives a palindrome (2021001202).

Adding to 20210012020 its reverse (2021001202), we get a palindrome (22231013222).

The spelling of 20210012020 in words is "twenty billion, two hundred ten million, twelve thousand, twenty".