10002110010021 has 36 divisors (see below), whose sum is σ = 14550760774368. Its totient is φ = 6620724076032.

The previous prime is 10002110010007. The next prime is 10002110010073. The reversal of 10002110010021 is 12001001120001.

It is a happy number.

It is not a de Polignac number, because 10002110010021 - 2⁹ = 10002110009509 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 = 10002110009985 and 10002110010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002110010421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 175302520 + ... + 175359566.

It is an arithmetic number, because the mean of its divisors is an integer number (404187799288).

Almost surely, 2^{10002110010021} is an apocalyptic number.

It is an amenable number.

10002110010021 is a deficient number, since it is larger than the sum of its proper divisors (4548650764347).

10002110010021 is an equidigital number, since it uses as much as digits as its factorization.

10002110010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57962 (or 57766 counting only the distinct ones).

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

Adding to 10002110010021 its reverse (12001001120001), we get a palindrome (22003111130022).

The spelling of 10002110010021 in words is "ten trillion, two billion, one hundred ten million, ten thousand, twenty-one".