12130145564220 has 72 divisors (see below), whose sum is σ = 36890844996096. Its totient is φ = 3226259759232.

The previous prime is 12130145564209. The next prime is 12130145564371. The reversal of 12130145564220 is 2246554103121.

12130145564220 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 0 + 1 + 4 + 5 + 5 + 642 + 2 + 0 = 666.

It is a super-2 number, since 2×12130145564220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 87907167 + ... + 88045046.

It is an arithmetic number, because the mean of its divisors is an integer number (512372847168).

Almost surely, 2^{12130145564220} is an apocalyptic number.

12130145564220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130145564220 is an abundant number, since it is smaller than the sum of its proper divisors (24760699431876).

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

12130145564220 is a wasteful number, since it uses less digits than its factorization.

12130145564220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175952611 (or 175952606 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 12130145564220 its reverse (2246554103121), we get a palindrome (14376699667341).

The spelling of 12130145564220 in words is "twelve trillion, one hundred thirty billion, one hundred forty-five million, five hundred sixty-four thousand, two hundred twenty".