4000223220121 has 16 divisors (see below), whose sum is σ = 4104715781376. Its totient is φ = 3896549876736.

The previous prime is 4000223220079. The next prime is 4000223220143. The reversal of 4000223220121 is 1210223220004.

It is a cyclic number.

It is not a de Polignac number, because 4000223220121 - 2¹⁵ = 4000223187353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4000223220181) 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 15 ways as a sum of consecutive naturals, for example, 32340025 + ... + 32463481.

It is an arithmetic number, because the mean of its divisors is an integer number (256544736336).

Almost surely, 2^{4000223220121} is an apocalyptic number.

It is an amenable number.

4000223220121 is a deficient number, since it is larger than the sum of its proper divisors (104492561255).

4000223220121 is a wasteful number, since it uses less digits than its factorization.

4000223220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126768.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 4000223220121 its reverse (1210223220004), we get a palindrome (5210446440125).

The spelling of 4000223220121 in words is "four trillion, two hundred twenty-three million, two hundred twenty thousand, one hundred twenty-one".