221222120023 has 8 divisors (see below), whose sum is σ = 221622306192. Its totient is φ = 220822014336.

The previous prime is 221222120017. The next prime is 221222120027. The reversal of 221222120023 is 320021222122.

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

It is a cyclic number.

It is not a de Polignac number, because 221222120023 - 2²¹ = 221220022871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222120027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9260911 + ... + 9284767.

It is an arithmetic number, because the mean of its divisors is an integer number (27702788274).

Almost surely, 2^221222120023 is an apocalyptic number.

221222120023 is a deficient number, since it is larger than the sum of its proper divisors (400186169).

221222120023 is a wasteful number, since it uses less digits than its factorization.

221222120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40241.

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

Adding to 221222120023 its reverse (320021222122), we get a palindrome (541243342145).

The spelling of 221222120023 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, twenty-three".