1212102220012 has 12 divisors (see below), whose sum is σ = 2122085000896. Its totient is φ = 605792219760.

The previous prime is 1212102220009. The next prime is 1212102220019. The reversal of 1212102220012 is 2100222012121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1212102220019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64712028 + ... + 64730755.

Almost surely, 2^{1212102220012} is an apocalyptic number.

It is an amenable number.

1212102220012 is a deficient number, since it is larger than the sum of its proper divisors (909982780884).

1212102220012 is a wasteful number, since it uses less digits than its factorization.

1212102220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129445128 (or 129445126 counting only the distinct ones).

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

Adding to 1212102220012 its reverse (2100222012121), we get a palindrome (3312324232133).

The spelling of 1212102220012 in words is "one trillion, two hundred twelve billion, one hundred two million, two hundred twenty thousand, twelve".