1215440446412 has 12 divisors (see below), whose sum is σ = 2142546481320. Its totient is φ = 603284308896.

The previous prime is 1215440446411. The next prime is 1215440446421. The reversal of 1215440446412 is 2146440445121.

It is not an unprimeable number, because it can be changed into a prime (1215440446411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108977962 + ... + 1108979057.

It is an arithmetic number, because the mean of its divisors is an integer number (178545540110).

Almost surely, 2^{1215440446412} is an apocalyptic number.

It is an amenable number.

1215440446412 is a deficient number, since it is larger than the sum of its proper divisors (927106034908).

1215440446412 is a wasteful number, since it uses less digits than its factorization.

1215440446412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217957160 (or 2217957158 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

The spelling of 1215440446412 in words is "one trillion, two hundred fifteen billion, four hundred forty million, four hundred forty-six thousand, four hundred twelve".