303211142221 has 16 divisors (see below), whose sum is σ = 327497497600. Its totient is φ = 279062739648.

The previous prime is 303211142219. The next prime is 303211142239. The reversal of 303211142221 is 122241112303.

It is a cyclic number.

It is not a de Polignac number, because 303211142221 - 2¹ = 303211142219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 303211142192 and 303211142201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303211142281) 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 in 15 ways as a sum of consecutive naturals, for example, 20483995 + ... + 20498791.

It is an arithmetic number, because the mean of its divisors is an integer number (20468593600).

Almost surely, 2^303211142221 is an apocalyptic number.

It is an amenable number.

303211142221 is a deficient number, since it is larger than the sum of its proper divisors (24286355379).

303211142221 is a wasteful number, since it uses less digits than its factorization.

303211142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19348.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 303211142221 its reverse (122241112303), we get a palindrome (425452254524).

The spelling of 303211142221 in words is "three hundred three billion, two hundred eleven million, one hundred forty-two thousand, two hundred twenty-one".