1181528120212 has 12 divisors (see below), whose sum is σ = 2255644593216. Its totient is φ = 537058236440.

The previous prime is 1181528120209. The next prime is 1181528120219. The reversal of 1181528120212 is 2120218251811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1181528120219) 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, 13426455868 + ... + 13426455955.

It is an arithmetic number, because the mean of its divisors is an integer number (187970382768).

Almost surely, 2^{1181528120212} is an apocalyptic number.

It is an amenable number.

1181528120212 is a deficient number, since it is larger than the sum of its proper divisors (1074116473004).

1181528120212 is a wasteful number, since it uses less digits than its factorization.

1181528120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26852911838 (or 26852911836 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 34.

The spelling of 1181528120212 in words is "one trillion, one hundred eighty-one billion, five hundred twenty-eight million, one hundred twenty thousand, two hundred twelve".