12011133121210 has 16 divisors (see below), whose sum is σ = 21620138468616. Its totient is φ = 4804431281728.

The previous prime is 12011133121159. The next prime is 12011133121291. The reversal of 12011133121210 is 1212133111021.

It can be written as a sum of positive squares in 4 ways, for example, as 11520451084041 + 490682037169 = 3394179^2 + 700487^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349777 + ... + 4913716.

Almost surely, 2^{12011133121210} is an apocalyptic number.

12011133121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011133121210 is a deficient number, since it is larger than the sum of its proper divisors (9609005347406).

12011133121210 is a wasteful number, since it uses less digits than its factorization.

12011133121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491697.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12011133121210 its reverse (1212133111021), we get a palindrome (13223266232231).

The spelling of 12011133121210 in words is "twelve trillion, eleven billion, one hundred thirty-three million, one hundred twenty-one thousand, two hundred ten".