10010012020 has 12 divisors (see below), whose sum is σ = 21021025284. Its totient is φ = 4004004800.

The previous prime is 10010011969. The next prime is 10010012021. The reversal of 10010012020 is 2021001001.

It can be written as a sum of positive squares in 2 ways, for example, as 2831516944 + 7178495076 = 53212^2 + 84726^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10010011994 and 10010012012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010012021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250250281 + ... + 250250320.

It is an arithmetic number, because the mean of its divisors is an integer number (1751752107).

Almost surely, 2^10010012020 is an apocalyptic number.

10010012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010012020 is an abundant number, since it is smaller than the sum of its proper divisors (11011013264).

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

10010012020 is a wasteful number, since it uses less digits than its factorization.

10010012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500500610 (or 500500608 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10010012020 its reverse (2021001001), we get a palindrome (12031013021).

The spelling of 10010012020 in words is "ten billion, ten million, twelve thousand, twenty".