10122421 has 8 divisors (see below), whose sum is σ = 11023200. Its totient is φ = 9258480.

The previous prime is 10122419. The next prime is 10122433. The reversal of 10122421 is 12422101.

It is a happy number.

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 10122421 - 2¹ = 10122419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8635 + ... + 9736.

It is an arithmetic number, because the mean of its divisors is an integer number (1377900).

Almost surely, 2^10122421 is an apocalyptic number.

It is an amenable number.

10122421 is a deficient number, since it is larger than the sum of its proper divisors (900779).

10122421 is a wasteful number, since it uses less digits than its factorization.

10122421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18419.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 10122421 is about 3181.5752387772. The cubic root of 10122421 is about 216.3190657807.

Adding to 10122421 its reverse (12422101), we get a palindrome (22544522).

It can be divided in two parts, 101 and 22421, that added together give a palindrome (22522).

The spelling of 10122421 in words is "ten million, one hundred twenty-two thousand, four hundred twenty-one".