1212010121212 has 72 divisors (see below), whose sum is σ = 2348197723872. Its totient is φ = 546944555520.

The previous prime is 1212010121207. The next prime is 1212010121213. The reversal of 1212010121212 is 2121210102121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212010121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69260848 + ... + 69278344.

It is an arithmetic number, because the mean of its divisors is an integer number (32613857276).

Almost surely, 2^{1212010121212} is an apocalyptic number.

It is an amenable number.

1212010121212 is a deficient number, since it is larger than the sum of its proper divisors (1136187602660).

1212010121212 is a wasteful number, since it uses less digits than its factorization.

1212010121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18547 (or 18534 counting only the distinct ones).

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

Adding to 1212010121212 its reverse (2121210102121), we get a palindrome (3333220223333).

The spelling of 1212010121212 in words is "one trillion, two hundred twelve billion, ten million, one hundred twenty-one thousand, two hundred twelve".