2421216121242 has 16 divisors (see below), whose sum is σ = 4886858227680. Its totient is φ = 799667709552.

The previous prime is 2421216121231. The next prime is 2421216121249.

2421216121242 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (2421216121249) 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, 1851082008 + ... + 1851083315.

It is an arithmetic number, because the mean of its divisors is an integer number (305428639230).

Almost surely, 2^{2421216121242} is an apocalyptic number.

2421216121242 is an abundant number, since it is smaller than the sum of its proper divisors (2465642106438).

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

2421216121242 is a wasteful number, since it uses less digits than its factorization.

2421216121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702165437.

The product of its digits is 6144, while the sum is 30.

The spelling of 2421216121242 in words is "two trillion, four hundred twenty-one billion, two hundred sixteen million, one hundred twenty-one thousand, two hundred forty-two".