1364413225221 has 12 divisors (see below), whose sum is σ = 1970852322348. Its totient is φ = 909593484864.

The previous prime is 1364413225159. The next prime is 1364413225247. The reversal of 1364413225221 is 1225223144631.

It is a happy number.

1364413225221 is a `hidden beast` number, since 1 + 3 + 64 + 41 + 32 + 2 + 522 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1178177822721 + 186235402500 = 1085439^2 + 431550^2 .

It is not a de Polignac number, because 1364413225221 - 2⁹ = 1364413224709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364413225291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700320 + ... + 1794233.

It is an arithmetic number, because the mean of its divisors is an integer number (164237693529).

Almost surely, 2^{1364413225221} is an apocalyptic number.

It is an amenable number.

1364413225221 is a deficient number, since it is larger than the sum of its proper divisors (606439097127).

1364413225221 is a wasteful number, since it uses less digits than its factorization.

1364413225221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555332 (or 2555329 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

Adding to 1364413225221 its reverse (1225223144631), we get a palindrome (2589636369852).

The spelling of 1364413225221 in words is "one trillion, three hundred sixty-four billion, four hundred thirteen million, two hundred twenty-five thousand, two hundred twenty-one".