12302012232220 has 12 divisors (see below), whose sum is σ = 25834225687704. Its totient is φ = 4920804892880.

The previous prime is 12302012232197. The next prime is 12302012232221. The reversal of 12302012232220 is 2223221020321.

It is a super-2 number, since 2×12302012232220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12302012232191 and 12302012232200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302012232221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 307550305786 + ... + 307550305825.

It is an arithmetic number, because the mean of its divisors is an integer number (2152852140642).

Almost surely, 2^{12302012232220} is an apocalyptic number.

12302012232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12302012232220 is an abundant number, since it is smaller than the sum of its proper divisors (13532213455484).

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

12302012232220 is a wasteful number, since it uses less digits than its factorization.

12302012232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615100611620 (or 615100611618 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12302012232220 its reverse (2223221020321), we get a palindrome (14525233252541).

The spelling of 12302012232220 in words is "twelve trillion, three hundred two billion, twelve million, two hundred thirty-two thousand, two hundred twenty".