12011404101212 has 48 divisors (see below), whose sum is σ = 21608456970240. Its totient is φ = 5837868263232.

The previous prime is 12011404101211. The next prime is 12011404101217. The reversal of 12011404101212 is 21210140411021.

It is a super-2 number, since 2×12011404101212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011404101211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1478686583 + ... + 1478694705.

It is an arithmetic number, because the mean of its divisors is an integer number (450176186880).

Almost surely, 2^{12011404101212} is an apocalyptic number.

It is an amenable number.

12011404101212 is a deficient number, since it is larger than the sum of its proper divisors (9597052869028).

12011404101212 is a wasteful number, since it uses less digits than its factorization.

12011404101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16370 (or 16368 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12011404101212 its reverse (21210140411021), we get a palindrome (33221544512233).

The spelling of 12011404101212 in words is "twelve trillion, eleven billion, four hundred four million, one hundred one thousand, two hundred twelve".