10112421040021 has 4 divisors (see below), whose sum is σ = 10139975321152. Its totient is φ = 10084866758892.

The previous prime is 10112421039979. The next prime is 10112421040081. The reversal of 10112421040021 is 12004012421101.

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 a cyclic number.

It is not a de Polignac number, because 10112421040021 - 2⁹ = 10112421039509 is a prime.

It is a super-2 number, since 2×10112421040021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112421040081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13777140015 + ... + 13777140748.

It is an arithmetic number, because the mean of its divisors is an integer number (2534993830288).

Almost surely, 2^{10112421040021} is an apocalyptic number.

It is an amenable number.

10112421040021 is a deficient number, since it is larger than the sum of its proper divisors (27554281131).

10112421040021 is an equidigital number, since it uses as much as digits as its factorization.

10112421040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27554281130.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10112421040021 its reverse (12004012421101), we get a palindrome (22116433461122).

The spelling of 10112421040021 in words is "ten trillion, one hundred twelve billion, four hundred twenty-one million, forty thousand, twenty-one".