1212211120012 has 24 divisors (see below), whose sum is σ = 2138936898560. Its totient is φ = 601099520400.

The previous prime is 1212211119991. The next prime is 1212211120037. The reversal of 1212211120012 is 2100211122121.

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, 1286562 + ... + 2019817.

Almost surely, 2^{1212211120012} is an apocalyptic number.

It is an amenable number.

1212211120012 is a deficient number, since it is larger than the sum of its proper divisors (926725778548).

1212211120012 is a wasteful number, since it uses less digits than its factorization.

1212211120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307141 (or 3307139 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212211120012 its reverse (2100211122121), we get a palindrome (3312422242133).

The spelling of 1212211120012 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one hundred twenty thousand, twelve".