10001210020 has 24 divisors (see below), whose sum is σ = 21004631424. Its totient is φ = 4000085856.

The previous prime is 10001210017. The next prime is 10001210027. The reversal of 10001210020 is 2001210001.

It is a junction number, because it is equal to n+sod(n) for n = 10001209985 and 10001210012.

It is not an unprimeable number, because it can be changed into a prime (10001210027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261439 + ... + 297241.

It is an arithmetic number, because the mean of its divisors is an integer number (875192976).

Almost surely, 2^10001210020 is an apocalyptic number.

10001210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001210020 is an abundant number, since it is smaller than the sum of its proper divisors (11003421404).

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

10001210020 is a wasteful number, since it uses less digits than its factorization.

10001210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49779 (or 49777 counting only the distinct ones).

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

Adding to 10001210020 its reverse (2001210001), we get a palindrome (12002420021).

The spelling of 10001210020 in words is "ten billion, one million, two hundred ten thousand, twenty".