31232201221122 has 32 divisors (see below), whose sum is σ = 68804566871040. Its totient is φ = 9372416957520.

The previous prime is 31232201221103. The next prime is 31232201221279. The reversal of 31232201221122 is 22112210223213.

It is a junction number, because it is equal to n+sod(n) for n = 31232201221092 and 31232201221101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2297154222 + ... + 2297167817.

It is an arithmetic number, because the mean of its divisors is an integer number (2150142714720).

Almost surely, 2^{31232201221122} is an apocalyptic number.

31232201221122 is an abundant number, since it is smaller than the sum of its proper divisors (37572365649918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31232201221122 is a wasteful number, since it uses less digits than its factorization.

31232201221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594322158.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31232201221122 its reverse (22112210223213), we get a palindrome (53344411444335).

The spelling of 31232201221122 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred one million, two hundred twenty-one thousand, one hundred twenty-two".