1201197518844 has 48 divisors (see below), whose sum is σ = 2850457559040. Its totient is φ = 393598031040.

The previous prime is 1201197518839. The next prime is 1201197518921. The reversal of 1201197518844 is 4488157911021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723937 + ... + 1710695.

It is an arithmetic number, because the mean of its divisors is an integer number (59384532480).

Almost surely, 2^{1201197518844} is an apocalyptic number.

It is an amenable number.

1201197518844 is an abundant number, since it is smaller than the sum of its proper divisors (1649260040196).

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

1201197518844 is a wasteful number, since it uses less digits than its factorization.

1201197518844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988490 (or 988488 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 1201197518844 in words is "one trillion, two hundred one billion, one hundred ninety-seven million, five hundred eighteen thousand, eight hundred forty-four".