2412849393221 has 2 divisors, whose sum is σ = 2412849393222. Its totient is φ = 2412849393220.

The previous prime is 2412849393217. The next prime is 2412849393239. The reversal of 2412849393221 is 1223939482142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1736320113025 + 676529280196 = 1317695^2 + 822514^2 .

It is a cyclic number.

It is not a de Polignac number, because 2412849393221 - 2² = 2412849393217 is a prime.

It is a super-4 number, since 4×2412849393221⁴ (a number of 51 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2412849393221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2412849393281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1206424696610 + 1206424696611.

It is an arithmetic number, because the mean of its divisors is an integer number (1206424696611).

Almost surely, 2^{2412849393221} is an apocalyptic number.

It is an amenable number.

2412849393221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2412849393221 is an equidigital number, since it uses as much as digits as its factorization.

2412849393221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 50.

The spelling of 2412849393221 in words is "two trillion, four hundred twelve billion, eight hundred forty-nine million, three hundred ninety-three thousand, two hundred twenty-one".