1091211930192 has 40 divisors (see below), whose sum is σ = 2819275363360. Its totient is φ = 363697153920.

The previous prime is 1091211930191. The next prime is 1091211930239. The reversal of 1091211930192 is 2910391121901.

It is a self number, because there is not a number n which added to its sum of digits gives 1091211930192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091211930191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813967 + ... + 1686702.

It is an arithmetic number, because the mean of its divisors is an integer number (70481884084).

Almost surely, 2^{1091211930192} is an apocalyptic number.

1091211930192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1091211930192 is an abundant number, since it is smaller than the sum of its proper divisors (1728063433168).

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

1091211930192 is a wasteful number, since it uses less digits than its factorization.

1091211930192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509771 (or 2509765 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 39.

The spelling of 1091211930192 in words is "one trillion, ninety-one billion, two hundred eleven million, nine hundred thirty thousand, one hundred ninety-two".