221211044402332 has 24 divisors (see below), whose sum is σ = 392445899826176. Its totient is φ = 109083826441728.

The previous prime is 221211044402297. The next prime is 221211044402357. The reversal of 221211044402332 is 233204440112122.

It is a junction number, because it is equal to n+sod(n) for n = 221211044402294 and 221211044402303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17876508 + ... + 27604195.

Almost surely, 2^{221211044402332} is an apocalyptic number.

It is an amenable number.

221211044402332 is a deficient number, since it is larger than the sum of its proper divisors (171234855423844).

221211044402332 is a wasteful number, since it uses less digits than its factorization.

221211044402332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45497437 (or 45497435 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 221211044402332 its reverse (233204440112122), we get a palindrome (454415484514454).

The spelling of 221211044402332 in words is "two hundred twenty-one trillion, two hundred eleven billion, forty-four million, four hundred two thousand, three hundred thirty-two".