12120010001212 has 6 divisors (see below), whose sum is σ = 21210017502128. Its totient is φ = 6060005000604.

The previous prime is 12120010001147. The next prime is 12120010001221. The reversal of 12120010001212 is 21210001002121.

It is a junction number, because it is equal to n+sod(n) for n = 12120010001192 and 12120010001201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515001250148 + ... + 1515001250155.

Almost surely, 2^{12120010001212} is an apocalyptic number.

It is an amenable number.

12120010001212 is a deficient number, since it is larger than the sum of its proper divisors (9090007500916).

12120010001212 is a wasteful number, since it uses less digits than its factorization.

12120010001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030002500307 (or 3030002500305 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12120010001212 its reverse (21210001002121), we get a palindrome (33330011003333).

The spelling of 12120010001212 in words is "twelve trillion, one hundred twenty billion, ten million, one thousand, two hundred twelve".