2201089728391 has 2 divisors, whose sum is σ = 2201089728392. Its totient is φ = 2201089728390.

The previous prime is 2201089728389. The next prime is 2201089728401. The reversal of 2201089728391 is 1938279801022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2201089728391 - 2¹ = 2201089728389 is a prime.

Together with 2201089728389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201089728091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100544864195 + 1100544864196.

It is an arithmetic number, because the mean of its divisors is an integer number (1100544864196).

Almost surely, 2^{2201089728391} is an apocalyptic number.

2201089728391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201089728391 is an equidigital number, since it uses as much as digits as its factorization.

2201089728391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 52.

It can be divided in two parts, 220108 and 9728391, that added together give a palindrome (9948499).

The spelling of 2201089728391 in words is "two trillion, two hundred one billion, eighty-nine million, seven hundred twenty-eight thousand, three hundred ninety-one".