221332203122 has 4 divisors (see below), whose sum is σ = 331998304686. Its totient is φ = 110666101560.

The previous prime is 221332203121. The next prime is 221332203133. The reversal of 221332203122 is 221302233122.

221332203122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 197428260241 + 23903942881 = 444329^2 + 154609^2 .

It is not an unprimeable number, because it can be changed into a prime (221332203121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55333050779 + ... + 55333050782.

Almost surely, 2^221332203122 is an apocalyptic number.

221332203122 is a deficient number, since it is larger than the sum of its proper divisors (110666101564).

221332203122 is a wasteful number, since it uses less digits than its factorization.

221332203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110666101563.

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

Adding to 221332203122 its reverse (221302233122), we get a palindrome (442634436244).

The spelling of 221332203122 in words is "two hundred twenty-one billion, three hundred thirty-two million, two hundred three thousand, one hundred twenty-two".