222521122413 has 24 divisors (see below), whose sum is σ = 351304701696. Its totient is φ = 135117187200.

The previous prime is 222521122403. The next prime is 222521122489. The reversal of 222521122413 is 314221125222.

222521122413 is a `hidden beast` number, since 2 + 2 + 2 + 521 + 122 + 4 + 13 = 666.

It is not a de Polignac number, because 222521122413 - 2⁶ = 222521122349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222521122403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23453103 + ... + 23462588.

It is an arithmetic number, because the mean of its divisors is an integer number (14637695904).

Almost surely, 2^222521122413 is an apocalyptic number.

It is an amenable number.

222521122413 is a deficient number, since it is larger than the sum of its proper divisors (128783579283).

222521122413 is a wasteful number, since it uses less digits than its factorization.

222521122413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46915745 (or 46915742 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 222521122413 its reverse (314221125222), we get a palindrome (536742247635).

The spelling of 222521122413 in words is "two hundred twenty-two billion, five hundred twenty-one million, one hundred twenty-two thousand, four hundred thirteen".