222123322001 has 4 divisors (see below), whose sum is σ = 253855225152. Its totient is φ = 190391418852.

The previous prime is 222123321977. The next prime is 222123322019. The reversal of 222123322001 is 100223321222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222123322001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222123322051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15865951565 + ... + 15865951578.

It is an arithmetic number, because the mean of its divisors is an integer number (63463806288).

Almost surely, 2^222123322001 is an apocalyptic number.

It is an amenable number.

222123322001 is a deficient number, since it is larger than the sum of its proper divisors (31731903151).

222123322001 is an equidigital number, since it uses as much as digits as its factorization.

222123322001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31731903150.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222123322001 its reverse (100223321222), we get a palindrome (322346643223).

The spelling of 222123322001 in words is "two hundred twenty-two billion, one hundred twenty-three million, three hundred twenty-two thousand, one".