542215221312 has 28 divisors (see below), whose sum is σ = 1434611106896. Its totient is φ = 180738407040.

The previous prime is 542215221311. The next prime is 542215221329. The reversal of 542215221312 is 213122512245.

It is a super-2 number, since 2×542215221312² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 542215221312.

It is not an unprimeable number, because it can be changed into a prime (542215221311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412018614 + ... + 1412018997.

Almost surely, 2^542215221312 is an apocalyptic number.

It is an amenable number.

542215221312 is an abundant number, since it is smaller than the sum of its proper divisors (892395885584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542215221312 is a wasteful number, since it uses less digits than its factorization.

542215221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824037626 (or 2824037616 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

Adding to 542215221312 its reverse (213122512245), we get a palindrome (755337733557).

The spelling of 542215221312 in words is "five hundred forty-two billion, two hundred fifteen million, two hundred twenty-one thousand, three hundred twelve".