4242412121 has 8 divisors (see below), whose sum is σ = 4365064704. Its totient is φ = 4120850160.

The previous prime is 4242412099. The next prime is 4242412133. The reversal of 4242412121 is 1212142424.

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 4242412121 - 2¹⁰ = 4242411097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4242412021) 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, 264761 + ... + 280326.

It is an arithmetic number, because the mean of its divisors is an integer number (545633088).

Almost surely, 2^4242412121 is an apocalyptic number.

It is an amenable number.

4242412121 is a deficient number, since it is larger than the sum of its proper divisors (122652583).

4242412121 is a wasteful number, since it uses less digits than its factorization.

4242412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545311.

The product of its digits is 1024, while the sum is 23.

The square root of 4242412121 is about 65133.8016777771. The cubic root of 4242412121 is about 1618.8413349060.

Adding to 4242412121 its reverse (1212142424), we get a palindrome (5454554545).

It can be divided in two parts, 42424 and 12121, that added together give a palindrome (54545).

The spelling of 4242412121 in words is "four billion, two hundred forty-two million, four hundred twelve thousand, one hundred twenty-one".