2042422121 has 8 divisors (see below), whose sum is σ = 2113507200. Its totient is φ = 1971380880.

The previous prime is 2042422117. The next prime is 2042422141. The reversal of 2042422121 is 1212242402.

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 2042422121 - 2² = 2042422117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2042422093 and 2042422102.

It is not an unprimeable number, because it can be changed into a prime (2042422141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104666 + ... + 122636.

It is an arithmetic number, because the mean of its divisors is an integer number (264188400).

Almost surely, 2^2042422121 is an apocalyptic number.

It is an amenable number.

2042422121 is a deficient number, since it is larger than the sum of its proper divisors (71085079).

2042422121 is a wasteful number, since it uses less digits than its factorization.

2042422121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21919.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2042422121 is about 45193.1645384565. The cubic root of 2042422121 is about 1268.7668856303.

Adding to 2042422121 its reverse (1212242402), we get a palindrome (3254664523).

The spelling of 2042422121 in words is "two billion, forty-two million, four hundred twenty-two thousand, one hundred twenty-one".