3112020009221 has 2 divisors, whose sum is σ = 3112020009222. Its totient is φ = 3112020009220.

The previous prime is 3112020009211. The next prime is 3112020009281. The reversal of 3112020009221 is 1229000202113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2678331906721 + 433688102500 = 1636561^2 + 658550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3112020009221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3112020009211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556010004610 + 1556010004611.

It is an arithmetic number, because the mean of its divisors is an integer number (1556010004611).

Almost surely, 2^{3112020009221} is an apocalyptic number.

It is an amenable number.

3112020009221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3112020009221 is an equidigital number, since it uses as much as digits as its factorization.

3112020009221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 3112020009221 in words is "three trillion, one hundred twelve billion, twenty million, nine thousand, two hundred twenty-one".