302012221224 has 32 divisors (see below), whose sum is σ = 862892061120. Its totient is φ = 86289206016.

The previous prime is 302012221223. The next prime is 302012221229. The reversal of 302012221224 is 422122210203.

It is a super-2 number, since 2×302012221224² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 302012221224.

It is not an unprimeable number, because it can be changed into a prime (302012221223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898845729 + ... + 898846064.

It is an arithmetic number, because the mean of its divisors is an integer number (26965376910).

Almost surely, 2^302012221224 is an apocalyptic number.

It is an amenable number.

302012221224 is an abundant number, since it is smaller than the sum of its proper divisors (560879839896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

302012221224 is a wasteful number, since it uses less digits than its factorization.

302012221224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797691809 (or 1797691805 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 302012221224 its reverse (422122210203), we get a palindrome (724134431427).

The spelling of 302012221224 in words is "three hundred two billion, twelve million, two hundred twenty-one thousand, two hundred twenty-four".