12011220312130 has 32 divisors (see below), whose sum is σ = 23284167593904. Its totient is φ = 4434744688896.

The previous prime is 12011220312053. The next prime is 12011220312149. The reversal of 12011220312130 is 3121302211021.

It can be written as a sum of positive squares in 8 ways, for example, as 2770903147609 + 9240317164521 = 1664603^2 + 3039789^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12011220312098 and 12011220312107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1739412 + ... + 5200768.

Almost surely, 2^{12011220312130} is an apocalyptic number.

12011220312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011220312130 is a deficient number, since it is larger than the sum of its proper divisors (11272947281774).

12011220312130 is a wasteful number, since it uses less digits than its factorization.

12011220312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488070.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12011220312130 its reverse (3121302211021), we get a palindrome (15132522523151).

The spelling of 12011220312130 in words is "twelve trillion, eleven billion, two hundred twenty million, three hundred twelve thousand, one hundred thirty".