4221415231121 has 16 divisors (see below), whose sum is σ = 4769404581888. Its totient is φ = 3703096664400.

The previous prime is 4221415231097. The next prime is 4221415231129. The reversal of 4221415231121 is 1211325141224.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221415231121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221415231129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57464795 + ... + 57538208.

It is an arithmetic number, because the mean of its divisors is an integer number (298087786368).

Almost surely, 2^{4221415231121} is an apocalyptic number.

It is an amenable number.

4221415231121 is a deficient number, since it is larger than the sum of its proper divisors (547989350767).

4221415231121 is a wasteful number, since it uses less digits than its factorization.

4221415231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115003132.

The product of its digits is 3840, while the sum is 29.

The spelling of 4221415231121 in words is "four trillion, two hundred twenty-one billion, four hundred fifteen million, two hundred thirty-one thousand, one hundred twenty-one".