303220223222221 has 16 divisors (see below), whose sum is σ = 323949040819200. Its totient is φ = 282984807828528.

The previous prime is 303220223222219. The next prime is 303220223222261. The reversal of 303220223222221 is 122222322022303.

It is a cyclic number.

It is not a de Polignac number, because 303220223222221 - 2¹ = 303220223222219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 303220223222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303220223222261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227339731 + ... + 228669616.

It is an arithmetic number, because the mean of its divisors is an integer number (20246815051200).

Almost surely, 2^{303220223222221} is an apocalyptic number.

It is an amenable number.

303220223222221 is a deficient number, since it is larger than the sum of its proper divisors (20728817596979).

303220223222221 is a wasteful number, since it uses less digits than its factorization.

303220223222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456009888.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 303220223222221 its reverse (122222322022303), we get a palindrome (425442545244524).

The spelling of 303220223222221 in words is "three hundred three trillion, two hundred twenty billion, two hundred twenty-three million, two hundred twenty-two thousand, two hundred twenty-one".