1220504532542 has 8 divisors (see below), whose sum is σ = 1832502042000. Its totient is φ = 609670518544.

The previous prime is 1220504532529. The next prime is 1220504532551. The reversal of 1220504532542 is 2452354050221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290871242 + ... + 290875437.

It is an arithmetic number, because the mean of its divisors is an integer number (229062755250).

Almost surely, 2^{1220504532542} is an apocalyptic number.

1220504532542 is a deficient number, since it is larger than the sum of its proper divisors (611997509458).

1220504532542 is a wasteful number, since it uses less digits than its factorization.

1220504532542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581747730.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 1220504532542 its reverse (2452354050221), we get a palindrome (3672858582763).

The spelling of 1220504532542 in words is "one trillion, two hundred twenty billion, five hundred four million, five hundred thirty-two thousand, five hundred forty-two".