4221475222361 has 2 divisors, whose sum is σ = 4221475222362. Its totient is φ = 4221475222360.

The previous prime is 4221475222339. The next prime is 4221475222409. The reversal of 4221475222361 is 1632225741224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2420124705625 + 1801350516736 = 1555675^2 + 1342144^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221475222361 - 2²⁶ = 4221408113497 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221475222961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110737611180 + 2110737611181.

It is an arithmetic number, because the mean of its divisors is an integer number (2110737611181).

Almost surely, 2^{4221475222361} is an apocalyptic number.

It is an amenable number.

4221475222361 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221475222361 is an equidigital number, since it uses as much as digits as its factorization.

4221475222361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 41.

The spelling of 4221475222361 in words is "four trillion, two hundred twenty-one billion, four hundred seventy-five million, two hundred twenty-two thousand, three hundred sixty-one".