221332002322 has 4 divisors (see below), whose sum is σ = 331998003486. Its totient is φ = 110666001160.

The previous prime is 221332002313. The next prime is 221332002347. The reversal of 221332002322 is 223200233122.

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., 157322496321 + 64009506001 = 396639^2 + 253001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221332002293 and 221332002302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55333000579 + ... + 55333000582.

Almost surely, 2^221332002322 is an apocalyptic number.

221332002322 is a deficient number, since it is larger than the sum of its proper divisors (110666001164).

221332002322 is a wasteful number, since it uses less digits than its factorization.

221332002322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110666001163.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 221332002322 its reverse (223200233122), we get a palindrome (444532235444).

The spelling of 221332002322 in words is "two hundred twenty-one billion, three hundred thirty-two million, two thousand, three hundred twenty-two".