222331240121 has 8 divisors (see below), whose sum is σ = 223697055240. Its totient is φ = 220966352512.

The previous prime is 222331240091. The next prime is 222331240141. The reversal of 222331240121 is 121042133222.

It can be written as a sum of positive squares in 4 ways, for example, as 47770222096 + 174561018025 = 218564^2 + 417805^2 .

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 222331240121 - 2⁶ = 222331240057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222331240141) 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, 252101 + ... + 712893.

It is an arithmetic number, because the mean of its divisors is an integer number (27962131905).

Almost surely, 2^222331240121 is an apocalyptic number.

It is an amenable number.

222331240121 is a deficient number, since it is larger than the sum of its proper divisors (1365815119).

222331240121 is a wasteful number, since it uses less digits than its factorization.

222331240121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463755.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 222331240121 its reverse (121042133222), we get a palindrome (343373373343).

The spelling of 222331240121 in words is "two hundred twenty-two billion, three hundred thirty-one million, two hundred forty thousand, one hundred twenty-one".