542012221040 has 40 divisors (see below), whose sum is σ = 1283955375168. Its totient is φ = 212714228480.

The previous prime is 542012221001. The next prime is 542012221063. The reversal of 542012221040 is 40122210245.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 542012220997 and 542012221015.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 63912296 + ... + 63920775.

Almost surely, 2^542012221040 is an apocalyptic number.

It is an amenable number.

542012221040 is an abundant number, since it is smaller than the sum of its proper divisors (741943154128).

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

542012221040 is a wasteful number, since it uses less digits than its factorization.

542012221040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127833137 (or 127833131 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 542012221040 its reverse (40122210245), we get a palindrome (582134431285).

The spelling of 542012221040 in words is "five hundred forty-two billion, twelve million, two hundred twenty-one thousand, forty".