51021102003212 has 24 divisors (see below), whose sum is σ = 97642073439120. Its totient is φ = 23134707279360.

The previous prime is 51021102003203. The next prime is 51021102003217. The reversal of 51021102003212 is 21230020112015.

It is not an unprimeable number, because it can be changed into a prime (51021102003217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417549853 + ... + 1417585844.

It is an arithmetic number, because the mean of its divisors is an integer number (4068419726630).

Almost surely, 2^{51021102003212} is an apocalyptic number.

It is an amenable number.

51021102003212 is a deficient number, since it is larger than the sum of its proper divisors (46620971435908).

51021102003212 is a wasteful number, since it uses less digits than its factorization.

51021102003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835136121 (or 2835136119 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 51021102003212 its reverse (21230020112015), we get a palindrome (72251122115227).

The spelling of 51021102003212 in words is "fifty-one trillion, twenty-one billion, one hundred two million, three thousand, two hundred twelve".