221133222032 has 20 divisors (see below), whose sum is σ = 436529498940. Its totient is φ = 108480448128.

The previous prime is 221133221917. The next prime is 221133222043. The reversal of 221133222032 is 230222331122.

It can be written as a sum of positive squares in 2 ways, for example, as 68646096016 + 152487126016 = 262004^2 + 390496^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221133221989 and 221133222007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130384307 + ... + 130386002.

It is an arithmetic number, because the mean of its divisors is an integer number (21826474947).

Almost surely, 2^221133222032 is an apocalyptic number.

It is an amenable number.

221133222032 is a deficient number, since it is larger than the sum of its proper divisors (215396276908).

221133222032 is a wasteful number, since it uses less digits than its factorization.

221133222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260770370 (or 260770364 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221133222032 its reverse (230222331122), we get a palindrome (451355553154).

The spelling of 221133222032 in words is "two hundred twenty-one billion, one hundred thirty-three million, two hundred twenty-two thousand, thirty-two".