1211011320192 has 64 divisors (see below), whose sum is σ = 3217453258800. Its totient is φ = 403582040064.

The previous prime is 1211011320149. The next prime is 1211011320199. The reversal of 1211011320192 is 2910231101121.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211011320199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422234 + ... + 2108262.

Almost surely, 2^{1211011320192} is an apocalyptic number.

1211011320192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211011320192 is an abundant number, since it is smaller than the sum of its proper divisors (2006441938608).

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

1211011320192 is an equidigital number, since it uses as much as digits as its factorization.

1211011320192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690643 (or 690631 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

The spelling of 1211011320192 in words is "one trillion, two hundred eleven billion, eleven million, three hundred twenty thousand, one hundred ninety-two".