4222141242121 has 4 divisors (see below), whose sum is σ = 4605972264144. Its totient is φ = 3838310220100.

The previous prime is 4222141242103. The next prime is 4222141242173. The reversal of 4222141242121 is 1212421412224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4222141242121 - 2⁵ = 4222141242089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4222141242121.

It is not an unprimeable number, because it can be changed into a prime (4222141242101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191915510995 + ... + 191915511016.

It is an arithmetic number, because the mean of its divisors is an integer number (1151493066036).

Almost surely, 2^{4222141242121} is an apocalyptic number.

It is an amenable number.

4222141242121 is a deficient number, since it is larger than the sum of its proper divisors (383831022023).

4222141242121 is a wasteful number, since it uses less digits than its factorization.

4222141242121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383831022022.

The product of its digits is 4096, while the sum is 28.

Adding to 4222141242121 its reverse (1212421412224), we get a palindrome (5434562654345).

The spelling of 4222141242121 in words is "four trillion, two hundred twenty-two billion, one hundred forty-one million, two hundred forty-two thousand, one hundred twenty-one".