10002012020 has 96 divisors (see below), whose sum is σ = 28201533696. Its totient is φ = 2877696000.

The previous prime is 10002012011. The next prime is 10002012023. The reversal of 10002012020 is 2021020001.

It is a junction number, because it is equal to n+sod(n) for n = 10002011989 and 10002012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002012023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229781 + ... + 269820.

It is an arithmetic number, because the mean of its divisors is an integer number (293765976).

Almost surely, 2^10002012020 is an apocalyptic number.

10002012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002012020 is an abundant number, since it is smaller than the sum of its proper divisors (18199521676).

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

10002012020 is a wasteful number, since it uses less digits than its factorization.

10002012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499641 (or 499639 counting only the distinct ones).

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

Adding to 10002012020 its reverse (2021020001), we get a palindrome (12023032021).

The spelling of 10002012020 in words is "ten billion, two million, twelve thousand, twenty".