115220204401 has 2 divisors, whose sum is σ = 115220204402. Its totient is φ = 115220204400.

The previous prime is 115220204399. The next prime is 115220204501. The reversal of 115220204401 is 104402022511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111455154801 + 3765049600 = 333849^2 + 61360^2 .

It is an emirp because it is prime and its reverse (104402022511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115220204401 - 2¹ = 115220204399 is a prime.

Together with 115220204399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (115220204501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57610102200 + 57610102201.

It is an arithmetic number, because the mean of its divisors is an integer number (57610102201).

Almost surely, 2^115220204401 is an apocalyptic number.

It is an amenable number.

115220204401 is a deficient number, since it is larger than the sum of its proper divisors (1).

115220204401 is an equidigital number, since it uses as much as digits as its factorization.

115220204401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 115220204401 its reverse (104402022511), we get a palindrome (219622226912).

The spelling of 115220204401 in words is "one hundred fifteen billion, two hundred twenty million, two hundred four thousand, four hundred one".