10104012021 has 4 divisors (see below), whose sum is σ = 13472016032. Its totient is φ = 6736008012.

The previous prime is 10104012011. The next prime is 10104012031. The reversal of 10104012021 is 12021040101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (10104012011) and next prime (10104012031).

It is not a de Polignac number, because 10104012021 - 2¹⁰ = 10104010997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10104011988 and 10104012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10104012011) 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, 1684002001 + ... + 1684002006.

It is an arithmetic number, because the mean of its divisors is an integer number (3368004008).

Almost surely, 2^10104012021 is an apocalyptic number.

It is an amenable number.

10104012021 is a deficient number, since it is larger than the sum of its proper divisors (3368004011).

10104012021 is an equidigital number, since it uses as much as digits as its factorization.

10104012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368004010.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10104012021 its reverse (12021040101), we get a palindrome (22125052122).

The spelling of 10104012021 in words is "ten billion, one hundred four million, twelve thousand, twenty-one".