11081212268721 has 8 divisors (see below), whose sum is σ = 16885656790464. Its totient is φ = 6332121296400.

The previous prime is 11081212268713. The next prime is 11081212268759. The reversal of 11081212268721 is 12786221218011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11081212268721 - 2³ = 11081212268713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11081212268761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263838387330 + ... + 263838387371.

It is an arithmetic number, because the mean of its divisors is an integer number (2110707098808).

Almost surely, 2^{11081212268721} is an apocalyptic number.

It is an amenable number.

11081212268721 is a deficient number, since it is larger than the sum of its proper divisors (5804444521743).

11081212268721 is an equidigital number, since it uses as much as digits as its factorization.

11081212268721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527676774711.

The product of its (nonzero) digits is 43008, while the sum is 42.

The spelling of 11081212268721 in words is "eleven trillion, eighty-one billion, two hundred twelve million, two hundred sixty-eight thousand, seven hundred twenty-one".