3612467210221 has 2 divisors, whose sum is σ = 3612467210222. Its totient is φ = 3612467210220.

The previous prime is 3612467210207. The next prime is 3612467210243. The reversal of 3612467210221 is 1220127642163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2326082522500 + 1286384687721 = 1525150^2 + 1134189^2 .

It is a cyclic number.

It is not a de Polignac number, because 3612467210221 - 2³⁹ = 3062711396333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3612467210201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806233605110 + 1806233605111.

It is an arithmetic number, because the mean of its divisors is an integer number (1806233605111).

Almost surely, 2^{3612467210221} is an apocalyptic number.

It is an amenable number.

3612467210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3612467210221 is an equidigital number, since it uses as much as digits as its factorization.

3612467210221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 3612467210221 in words is "three trillion, six hundred twelve billion, four hundred sixty-seven million, two hundred ten thousand, two hundred twenty-one".