11221200001992 has 64 divisors (see below), whose sum is σ = 28316844302400. Its totient is φ = 3705224878080.

The previous prime is 11221200001939. The next prime is 11221200001997. The reversal of 11221200001992 is 29910000212211.

11221200001992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11221200001997) 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, 46846692 + ... + 47085612.

It is an arithmetic number, because the mean of its divisors is an integer number (442450692225).

Almost surely, 2^{11221200001992} is an apocalyptic number.

11221200001992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221200001992 is an abundant number, since it is smaller than the sum of its proper divisors (17095644300408).

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

11221200001992 is a wasteful number, since it uses less digits than its factorization.

11221200001992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257326 (or 257322 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 11221200001992 in words is "eleven trillion, two hundred twenty-one billion, two hundred million, one thousand, nine hundred ninety-two".