4242121112 has 32 divisors (see below), whose sum is σ = 8601059520. Its totient is φ = 1953815040.

The previous prime is 4242121069. The next prime is 4242121133. The reversal of 4242121112 is 2111212424.

It is a super-2 number, since 2×4242121112² = 35991183057752233088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325439 + ... + 338222.

It is an arithmetic number, because the mean of its divisors is an integer number (268783110).

Almost surely, 2^4242121112 is an apocalyptic number.

It is an amenable number.

4242121112 is an abundant number, since it is smaller than the sum of its proper divisors (4358938408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4242121112 is a wasteful number, since it uses less digits than its factorization.

4242121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663731 (or 663727 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 4242121112 is about 65131.5677072186. The cubic root of 4242121112 is about 1618.8043191583.

Adding to 4242121112 its reverse (2111212424), we get a palindrome (6353333536).

The spelling of 4242121112 in words is "four billion, two hundred forty-two million, one hundred twenty-one thousand, one hundred twelve".