2420240121 has 64 divisors (see below), whose sum is σ = 4134144000. Its totient is φ = 1386849600.

The previous prime is 2420240107. The next prime is 2420240149. The reversal of 2420240121 is 1210420242.

2420240121 is a `hidden beast` number, since 2 + 420 + 240 + 1 + 2 + 1 = 666.

2420240121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2420240121 - 2⁶ = 2420240057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2420240094 and 2420240103.

It is not an unprimeable number, because it can be changed into a prime (2420240171) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 390396 + ... + 396546.

It is an arithmetic number, because the mean of its divisors is an integer number (64596000).

Almost surely, 2^2420240121 is an apocalyptic number.

It is an amenable number.

2420240121 is a deficient number, since it is larger than the sum of its proper divisors (1713903879).

2420240121 is a wasteful number, since it uses less digits than its factorization.

2420240121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251 (or 6245 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2420240121 is about 49195.9360211796. The cubic root of 2420240121 is about 1342.6190924593.

Adding to 2420240121 its reverse (1210420242), we get a palindrome (3630660363).

The spelling of 2420240121 in words is "two billion, four hundred twenty million, two hundred forty thousand, one hundred twenty-one".