10312121132212 has 12 divisors (see below), whose sum is σ = 18046249526340. Its totient is φ = 5156049838976.

The previous prime is 10312121132179. The next prime is 10312121132219. The reversal of 10312121132212 is 21223112121301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3820601892496 + 6491519239716 = 1954636^2 + 2547846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312121132219) 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, 279787 + ... + 4550002.

It is an arithmetic number, because the mean of its divisors is an integer number (1503854127195).

Almost surely, 2^{10312121132212} is an apocalyptic number.

It is an amenable number.

10312121132212 is a deficient number, since it is larger than the sum of its proper divisors (7734128394128).

10312121132212 is a wasteful number, since it uses less digits than its factorization.

10312121132212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5363570 (or 5363568 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 10312121132212 its reverse (21223112121301), we get a palindrome (31535233253513).

The spelling of 10312121132212 in words is "ten trillion, three hundred twelve billion, one hundred twenty-one million, one hundred thirty-two thousand, two hundred twelve".