4102012421 has 8 divisors (see below), whose sum is σ = 4421501280. Its totient is φ = 3783087792.

The previous prime is 4102012417. The next prime is 4102012427. The reversal of 4102012421 is 1242102014.

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 4102012421 - 2² = 4102012417 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 4102012421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102012427) 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, 125891 + ... + 155088.

It is an arithmetic number, because the mean of its divisors is an integer number (552687660).

Almost surely, 2^4102012421 is an apocalyptic number.

It is an amenable number.

4102012421 is a deficient number, since it is larger than the sum of its proper divisors (319488859).

4102012421 is a wasteful number, since it uses less digits than its factorization.

4102012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282115.

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

The square root of 4102012421 is about 64046.9548144172. The cubic root of 4102012421 is about 1600.7824845790.

Adding to 4102012421 its reverse (1242102014), we get a palindrome (5344114435).

The spelling of 4102012421 in words is "four billion, one hundred two million, twelve thousand, four hundred twenty-one".