302002221 has 16 divisors (see below), whose sum is σ = 408218688. Its totient is φ = 198576000.

The previous prime is 302002219. The next prime is 302002231. The reversal of 302002221 is 122200203.

It is not a de Polignac number, because 302002221 - 2¹ = 302002219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 302002197 and 302002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302002231) 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, 83370 + ... + 86916.

It is an arithmetic number, because the mean of its divisors is an integer number (25513668).

Almost surely, 2^302002221 is an apocalyptic number.

It is an amenable number.

302002221 is a deficient number, since it is larger than the sum of its proper divisors (106216467).

302002221 is a wasteful number, since it uses less digits than its factorization.

302002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 302002221 is about 17378.2110989595. The cubic root of 302002221 is about 670.9189299141.

Adding to 302002221 its reverse (122200203), we get a palindrome (424202424).

The spelling of 302002221 in words is "three hundred two million, two thousand, two hundred twenty-one".