232221533554212 has 48 divisors (see below), whose sum is σ = 547583117786880. Its totient is φ = 76592321874432.

The previous prime is 232221533554187. The next prime is 232221533554217. The reversal of 232221533554212 is 212455335122232.

It is a super-2 number, since 2×232221533554212² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (232221533554217) by changing a digit.

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, 257415493 + ... + 258316044.

It is an arithmetic number, because the mean of its divisors is an integer number (11407981620560).

Almost surely, 2^{232221533554212} is an apocalyptic number.

It is an amenable number.

232221533554212 is an abundant number, since it is smaller than the sum of its proper divisors (315361584232668).

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

232221533554212 is a wasteful number, since it uses less digits than its factorization.

232221533554212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515731940 (or 515731938 counting only the distinct ones).

The product of its digits is 864000, while the sum is 42.

Adding to 232221533554212 its reverse (212455335122232), we get a palindrome (444676868676444).

The spelling of 232221533554212 in words is "two hundred thirty-two trillion, two hundred twenty-one billion, five hundred thirty-three million, five hundred fifty-four thousand, two hundred twelve".