1202121210212 has 12 divisors (see below), whose sum is σ = 2265536127036. Its totient is φ = 554825173920.

The previous prime is 1202121210209. The next prime is 1202121210217. The reversal of 1202121210212 is 2120121212021.

It can be written as a sum of positive squares in 2 ways, for example, as 531858069796 + 670263140416 = 729286^2 + 818696^2 .

It is not an unprimeable number, because it can be changed into a prime (1202121210217) 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 in 3 ways as a sum of consecutive naturals, for example, 11558857739 + ... + 11558857842.

It is an arithmetic number, because the mean of its divisors is an integer number (188794677253).

Almost surely, 2^{1202121210212} is an apocalyptic number.

It is an amenable number.

1202121210212 is a deficient number, since it is larger than the sum of its proper divisors (1063414916824).

1202121210212 is a wasteful number, since it uses less digits than its factorization.

1202121210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23117715598 (or 23117715596 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1202121210212 its reverse (2120121212021), we get a palindrome (3322242422233).

The spelling of 1202121210212 in words is "one trillion, two hundred two billion, one hundred twenty-one million, two hundred ten thousand, two hundred twelve".