221321202233032 has 128 divisors (see below), whose sum is σ = 457698971174400. Its totient is φ = 99493500198400.

The previous prime is 221321202232993. The next prime is 221321202233099. The reversal of 221321202233032 is 230332202123122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16250907519 + ... + 16250921137.

It is an arithmetic number, because the mean of its divisors is an integer number (3575773212300).

Almost surely, 2^{221321202233032} is an apocalyptic number.

221321202233032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221321202233032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228849485587200).

221321202233032 is an abundant number, since it is smaller than the sum of its proper divisors (236377768941368).

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

221321202233032 is a wasteful number, since it uses less digits than its factorization.

221321202233032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16507 (or 16503 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 221321202233032 its reverse (230332202123122), we get a palindrome (451653404356154).

The spelling of 221321202233032 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, two hundred two million, two hundred thirty-three thousand, thirty-two".