4422121142421 has 16 divisors (see below), whose sum is σ = 6318800601984. Its totient is φ = 2743689731904.

The previous prime is 4422121142321. The next prime is 4422121142459. The reversal of 4422121142421 is 1242411212244.

It is not a de Polignac number, because 4422121142421 - 2¹⁷ = 4422121011349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4422121142221) 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, 866061126 + ... + 866066231.

It is an arithmetic number, because the mean of its divisors is an integer number (394925037624).

Almost surely, 2^{4422121142421} is an apocalyptic number.

It is an amenable number.

4422121142421 is a deficient number, since it is larger than the sum of its proper divisors (1896679459563).

4422121142421 is a wasteful number, since it uses less digits than its factorization.

4422121142421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732127420.

The product of its digits is 8192, while the sum is 30.

Adding to 4422121142421 its reverse (1242411212244), we get a palindrome (5664532354665).

The spelling of 4422121142421 in words is "four trillion, four hundred twenty-two billion, one hundred twenty-one million, one hundred forty-two thousand, four hundred twenty-one".