2201021128849 has 2 divisors, whose sum is σ = 2201021128850. Its totient is φ = 2201021128848.

The previous prime is 2201021128843. The next prime is 2201021128907. The reversal of 2201021128849 is 9488211201022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2201009616400 + 11512449 = 1483580^2 + 3393^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201021128849 - 2³ = 2201021128841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201021128841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100510564424 + 1100510564425.

It is an arithmetic number, because the mean of its divisors is an integer number (1100510564425).

Almost surely, 2^{2201021128849} is an apocalyptic number.

It is an amenable number.

2201021128849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201021128849 is an equidigital number, since it uses as much as digits as its factorization.

2201021128849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 2201021128849 in words is "two trillion, two hundred one billion, twenty-one million, one hundred twenty-eight thousand, eight hundred forty-nine".