1201945471012 has 96 divisors (see below), whose sum is σ = 2605637422080. Its totient is φ = 476953557120.

The previous prime is 1201945471003. The next prime is 1201945471057. The reversal of 1201945471012 is 2101745491021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6285313 + ... + 6473719.

It is an arithmetic number, because the mean of its divisors is an integer number (27142056480).

Almost surely, 2^{1201945471012} is an apocalyptic number.

It is an amenable number.

1201945471012 is an abundant number, since it is smaller than the sum of its proper divisors (1403691951068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201945471012 is a wasteful number, since it uses less digits than its factorization.

1201945471012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189041 (or 189039 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 1201945471012 in words is "one trillion, two hundred one billion, nine hundred forty-five million, four hundred seventy-one thousand, twelve".