1215450251042 has 8 divisors (see below), whose sum is σ = 1823225058000. Its totient is φ = 607708565044.

The previous prime is 1215450250991. The next prime is 1215450251063. The reversal of 1215450251042 is 2401520545121.

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

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, 8188292 + ... + 8335407.

It is an arithmetic number, because the mean of its divisors is an integer number (227903132250).

Almost surely, 2^{1215450251042} is an apocalyptic number.

1215450251042 is a deficient number, since it is larger than the sum of its proper divisors (607774806958).

1215450251042 is a wasteful number, since it uses less digits than its factorization.

1215450251042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16560480.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 1215450251042 its reverse (2401520545121), we get a palindrome (3616970796163).

The spelling of 1215450251042 in words is "one trillion, two hundred fifteen billion, four hundred fifty million, two hundred fifty-one thousand, forty-two".