10012110021 has 48 divisors (see below), whose sum is σ = 15762339840. Its totient is φ = 6100699680.

The previous prime is 10012109993. The next prime is 10012110037. The reversal of 10012110021 is 12001121001.

It is a happy number.

It is not a de Polignac number, because 10012110021 - 2¹⁸ = 10011847877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10012109985 and 10012110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012110421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1836726 + ... + 1842168.

It is an arithmetic number, because the mean of its divisors is an integer number (328382080).

Almost surely, 2^10012110021 is an apocalyptic number.

It is an amenable number.

10012110021 is a deficient number, since it is larger than the sum of its proper divisors (5750229819).

10012110021 is a wasteful number, since it uses less digits than its factorization.

10012110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846 (or 5843 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10012110021 its reverse (12001121001), we get a palindrome (22013231022).

The spelling of 10012110021 in words is "ten billion, twelve million, one hundred ten thousand, twenty-one".