1215232223542 has 8 divisors (see below), whose sum is σ = 1822865704632. Its totient is φ = 607610322000.

The previous prime is 1215232223507. The next prime is 1215232223567. The reversal of 1215232223542 is 2453222325121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1215232223498 and 1215232223507.

It is a congruent number.

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, 2627584 + ... + 3055267.

It is an arithmetic number, because the mean of its divisors is an integer number (227858213079).

Almost surely, 2^{1215232223542} is an apocalyptic number.

1215232223542 is a deficient number, since it is larger than the sum of its proper divisors (607633481090).

1215232223542 is a wasteful number, since it uses less digits than its factorization.

1215232223542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789774.

The product of its digits is 57600, while the sum is 34.

Adding to 1215232223542 its reverse (2453222325121), we get a palindrome (3668454548663).

The spelling of 1215232223542 in words is "one trillion, two hundred fifteen billion, two hundred thirty-two million, two hundred twenty-three thousand, five hundred forty-two".