2112261449 has 2 divisors, whose sum is σ = 2112261450. Its totient is φ = 2112261448.

The previous prime is 2112261443. The next prime is 2112261491. The reversal of 2112261449 is 9441622112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2111862025 + 399424 = 45955^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112261449 - 2¹⁶ = 2112195913 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112261443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056130724 + 1056130725.

It is an arithmetic number, because the mean of its divisors is an integer number (1056130725).

Almost surely, 2^2112261449 is an apocalyptic number.

It is an amenable number.

2112261449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112261449 is an equidigital number, since it uses as much as digits as its factorization.

2112261449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 2112261449 is about 45959.3456110942. The cubic root of 2112261449 is about 1283.0666721524.

The spelling of 2112261449 in words is "two billion, one hundred twelve million, two hundred sixty-one thousand, four hundred forty-nine".