12104012212 has 6 divisors (see below), whose sum is σ = 21182021378. Its totient is φ = 6052006104.

The previous prime is 12104012209. The next prime is 12104012213. The reversal of 12104012212 is 21221040121.

It can be written as a sum of positive squares in only one way, i.e., 11977989136 + 126023076 = 109444^2 + 11226^2 .

It is a super-2 number, since 2×12104012212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104012213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1513001523 + ... + 1513001530.

Almost surely, 2^12104012212 is an apocalyptic number.

It is an amenable number.

12104012212 is a deficient number, since it is larger than the sum of its proper divisors (9078009166).

12104012212 is a wasteful number, since it uses less digits than its factorization.

12104012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026003057 (or 3026003055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12104012212 its reverse (21221040121), we get a palindrome (33325052333).

The spelling of 12104012212 in words is "twelve billion, one hundred four million, twelve thousand, two hundred twelve".