232210221128 has 12 divisors (see below), whose sum is σ = 435396720195. Its totient is φ = 116104429080.

The previous prime is 232210221127. The next prime is 232210221227. The reversal of 232210221128 is 821122012232.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 116105110564 + 116105110564 = 340742^2 + 340742^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=340742.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232210221097 and 232210221106.

It is not an unprimeable number, because it can be changed into a prime (232210221121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1277783 + ... + 1448153.

Almost surely, 2^232210221128 is an apocalyptic number.

It is an amenable number.

232210221128 is a deficient number, since it is larger than the sum of its proper divisors (203186499067).

232210221128 is an frugal number, since it uses more digits than its factorization.

232210221128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340748 (or 170373 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The spelling of 232210221128 in words is "two hundred thirty-two billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-eight".