10012042421 has 8 divisors (see below), whose sum is σ = 10038341664. Its totient is φ = 9985764880.

The previous prime is 10012042363. The next prime is 10012042427. The reversal of 10012042421 is 12424021001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10012042421 - 2⁶ = 10012042357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10012042421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012042427) 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, 1323911 + ... + 1331451.

It is an arithmetic number, because the mean of its divisors is an integer number (1254792708).

Almost surely, 2^10012042421 is an apocalyptic number.

It is an amenable number.

10012042421 is a deficient number, since it is larger than the sum of its proper divisors (26299243).

10012042421 is an equidigital number, since it uses as much as digits as its factorization.

10012042421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10851.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10012042421 its reverse (12424021001), we get a palindrome (22436063422).

The spelling of 10012042421 in words is "ten billion, twelve million, forty-two thousand, four hundred twenty-one".