1198984134012 has 48 divisors (see below), whose sum is σ = 3208669347072. Its totient is φ = 341347789440.

The previous prime is 1198984134001. The next prime is 1198984134017. The reversal of 1198984134012 is 2104314898911.

It is a super-2 number, since 2×1198984134012² (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 (1198984134017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25374298 + ... + 25421505.

It is an arithmetic number, because the mean of its divisors is an integer number (66847278064).

Almost surely, 2^{1198984134012} is an apocalyptic number.

1198984134012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1198984134012 is an abundant number, since it is smaller than the sum of its proper divisors (2009685213060).

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

1198984134012 is a wasteful number, since it uses less digits than its factorization.

1198984134012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50796098 (or 50796096 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 1198984134012 in words is "one trillion, one hundred ninety-eight billion, nine hundred eighty-four million, one hundred thirty-four thousand, twelve".