222223222121 has 8 divisors (see below), whose sum is σ = 234077157600. Its totient is φ = 210385084320.

The previous prime is 222223222057. The next prime is 222223222139. The reversal of 222223222121 is 121222322222.

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 222223222121 - 2⁶ = 222223222057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222223222171) 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, 3920531 + ... + 3976808.

It is an arithmetic number, because the mean of its divisors is an integer number (29259644700).

Almost surely, 2^222223222121 is an apocalyptic number.

It is an amenable number.

222223222121 is a deficient number, since it is larger than the sum of its proper divisors (11853935479).

222223222121 is a wasteful number, since it uses less digits than its factorization.

222223222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7898839.

The product of its digits is 1536, while the sum is 23.

Adding to 222223222121 its reverse (121222322222), we get a palindrome (343445544343).

The spelling of 222223222121 in words is "two hundred twenty-two billion, two hundred twenty-three million, two hundred twenty-two thousand, one hundred twenty-one".