221223230500522 has 8 divisors (see below), whose sum is σ = 335056543282656. Its totient is φ = 109537716072972.

The previous prime is 221223230500469. The next prime is 221223230500529. The reversal of 221223230500522 is 225005032322122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221223230500529) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 536949588388 + ... + 536949588799.

It is an arithmetic number, because the mean of its divisors is an integer number (41882067910332).

Almost surely, 2^{221223230500522} is an apocalyptic number.

221223230500522 is a deficient number, since it is larger than the sum of its proper divisors (113833312782134).

221223230500522 is a wasteful number, since it uses less digits than its factorization.

221223230500522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073899177292.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 221223230500522 its reverse (225005032322122), we get a palindrome (446228262822644).

The spelling of 221223230500522 in words is "two hundred twenty-one trillion, two hundred twenty-three billion, two hundred thirty million, five hundred thousand, five hundred twenty-two".