356518121224 has 16 divisors (see below), whose sum is σ = 668481134400. Its totient is φ = 178256485392.

The previous prime is 356518121161. The next prime is 356518121273. The reversal of 356518121224 is 422121815653.

It is a happy number.

It is a super-2 number, since 2×356518121224² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348637 + ... + 913555.

It is an arithmetic number, because the mean of its divisors is an integer number (41780070900).

Almost surely, 2^356518121224 is an apocalyptic number.

It is an amenable number.

356518121224 is a deficient number, since it is larger than the sum of its proper divisors (311963013176).

356518121224 is a wasteful number, since it uses less digits than its factorization.

356518121224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643812 (or 643808 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

Adding to 356518121224 its reverse (422121815653), we get a palindrome (778639936877).

The spelling of 356518121224 in words is "three hundred fifty-six billion, five hundred eighteen million, one hundred twenty-one thousand, two hundred twenty-four".