231222222032011 has 16 divisors (see below), whose sum is σ = 264370486348800. Its totient is φ = 198103102616448.

The previous prime is 231222222031963. The next prime is 231222222032047. The reversal of 231222222032011 is 110230222222132.

It is a cyclic number.

It is not a de Polignac number, because 231222222032011 - 2⁹ = 231222222031499 is a prime.

It is a super-2 number, since 2×231222222032011² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231222222032911) 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, 182087656 + ... + 183353098.

It is an arithmetic number, because the mean of its divisors is an integer number (16523155396800).

Almost surely, 2^{231222222032011} is an apocalyptic number.

231222222032011 is a deficient number, since it is larger than the sum of its proper divisors (33148264316789).

231222222032011 is a wasteful number, since it uses less digits than its factorization.

231222222032011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276938.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231222222032011 its reverse (110230222222132), we get a palindrome (341452444254143).

The spelling of 231222222032011 in words is "two hundred thirty-one trillion, two hundred twenty-two billion, two hundred twenty-two million, thirty-two thousand, eleven".