12011212112131 has 8 divisors (see below), whose sum is σ = 12098139560640. Its totient is φ = 11924292033192.

The previous prime is 12011212112093. The next prime is 12011212112149. The reversal of 12011212112131 is 13121121211021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12011212112131 - 2¹⁷ = 12011211981059 is a prime.

It is a super-2 number, since 2×12011212112131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011212112099 and 12011212112108.

It is not an unprimeable number, because it can be changed into a prime (12011212172131) 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, 1450296 + ... + 5111338.

It is an arithmetic number, because the mean of its divisors is an integer number (1512267445080).

Almost surely, 2^{12011212112131} is an apocalyptic number.

12011212112131 is a deficient number, since it is larger than the sum of its proper divisors (86927448509).

12011212112131 is a wasteful number, since it uses less digits than its factorization.

12011212112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684785.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 12011212112131 its reverse (13121121211021), we get a palindrome (25132333323152).

The spelling of 12011212112131 in words is "twelve trillion, eleven billion, two hundred twelve million, one hundred twelve thousand, one hundred thirty-one".