4221000290121 has 8 divisors (see below), whose sum is σ = 5959059233184. Its totient is φ = 2648470770240.

The previous prime is 4221000290107. The next prime is 4221000290153. The reversal of 4221000290121 is 1210920001224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4221000290121 - 2¹⁰ = 4221000289097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4221000290091 and 4221000290100.

It is not an unprimeable number, because it can be changed into a prime (4221000292121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41382355735 + ... + 41382355836.

It is an arithmetic number, because the mean of its divisors is an integer number (744882404148).

Almost surely, 2^{4221000290121} is an apocalyptic number.

It is an amenable number.

4221000290121 is a deficient number, since it is larger than the sum of its proper divisors (1738058943063).

4221000290121 is a wasteful number, since it uses less digits than its factorization.

4221000290121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82764711591.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 4221000290121 its reverse (1210920001224), we get a palindrome (5431920291345).

The spelling of 4221000290121 in words is "four trillion, two hundred twenty-one billion, two hundred ninety thousand, one hundred twenty-one".