245221245401 has 16 divisors (see below), whose sum is σ = 268911534528. Its totient is φ = 221765644800.

The previous prime is 245221245359. The next prime is 245221245419. The reversal of 245221245401 is 104542122542.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245221245401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245221245301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2752385 + ... + 2840081.

It is an arithmetic number, because the mean of its divisors is an integer number (16806970908).

Almost surely, 2^245221245401 is an apocalyptic number.

It is an amenable number.

245221245401 is a deficient number, since it is larger than the sum of its proper divisors (23690289127).

245221245401 is a wasteful number, since it uses less digits than its factorization.

245221245401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89032.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 245221245401 its reverse (104542122542), we get a palindrome (349763367943).

The spelling of 245221245401 in words is "two hundred forty-five billion, two hundred twenty-one million, two hundred forty-five thousand, four hundred one".