302012221140 has 480 divisors, whose sum is σ = 1144921747200. Its totient is φ = 65101916160.

The previous prime is 302012221129. The next prime is 302012221157. The reversal of 302012221140 is 41122210203.

It is a happy number.

302012221140 is a `hidden beast` number, since 302 + 0 + 1 + 2 + 221 + 140 = 666.

It is a super-2 number, since 2×302012221140² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 49337280 + ... + 49343400.

It is an arithmetic number, because the mean of its divisors is an integer number (2385253640).

Almost surely, 2^302012221140 is an apocalyptic number.

302012221140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302012221140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572460873600).

302012221140 is an abundant number, since it is smaller than the sum of its proper divisors (842909526060).

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

302012221140 is a wasteful number, since it uses less digits than its factorization.

302012221140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397 (or 6386 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 302012221140 its reverse (41122210203), we get a palindrome (343134431343).

The spelling of 302012221140 in words is "three hundred two billion, twelve million, two hundred twenty-one thousand, one hundred forty".