232221133021442 has 16 divisors (see below), whose sum is σ = 349689252477312. Its totient is φ = 115658132443200.

The previous prime is 232221133021421. The next prime is 232221133021447. The reversal of 232221133021442 is 244120331122232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 232221133021399 and 232221133021408.

It is not an unprimeable number, because it can be changed into a prime (232221133021447) 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 7 ways as a sum of consecutive naturals, for example, 15331559 + ... + 26448042.

It is an arithmetic number, because the mean of its divisors is an integer number (21855578279832).

Almost surely, 2^{232221133021442} is an apocalyptic number.

232221133021442 is a deficient number, since it is larger than the sum of its proper divisors (117468119455870).

232221133021442 is a wasteful number, since it uses less digits than its factorization.

232221133021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41790433.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 232221133021442 its reverse (244120331122232), we get a palindrome (476341464143674).

The spelling of 232221133021442 in words is "two hundred thirty-two trillion, two hundred twenty-one billion, one hundred thirty-three million, twenty-one thousand, four hundred forty-two".