1212022202012 has 6 divisors (see below), whose sum is σ = 2121038853528. Its totient is φ = 606011101004.

The previous prime is 1212022202011. The next prime is 1212022202051. The reversal of 1212022202012 is 2102022202121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212022202011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151502775248 + ... + 151502775255.

It is an arithmetic number, because the mean of its divisors is an integer number (353506475588).

Almost surely, 2^{1212022202012} is an apocalyptic number.

It is an amenable number.

1212022202012 is a deficient number, since it is larger than the sum of its proper divisors (909016651516).

1212022202012 is a wasteful number, since it uses less digits than its factorization.

1212022202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303005550507 (or 303005550505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1212022202012 its reverse (2102022202121), we get a palindrome (3314044404133).

The spelling of 1212022202012 in words is "one trillion, two hundred twelve billion, twenty-two million, two hundred two thousand, twelve".