1205542474012 has 6 divisors (see below), whose sum is σ = 2109699329528. Its totient is φ = 602771237004.

The previous prime is 1205542474007. The next prime is 1205542474013. The reversal of 1205542474012 is 2104742455021.

It is a super-2 number, since 2×1205542474012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205542474013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150692809248 + ... + 150692809255.

Almost surely, 2^{1205542474012} is an apocalyptic number.

It is an amenable number.

1205542474012 is a deficient number, since it is larger than the sum of its proper divisors (904156855516).

1205542474012 is a wasteful number, since it uses less digits than its factorization.

1205542474012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301385618507 (or 301385618505 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 1205542474012 in words is "one trillion, two hundred five billion, five hundred forty-two million, four hundred seventy-four thousand, twelve".