911021111122 has 8 divisors (see below), whose sum is σ = 1367351426736. Its totient is φ = 455237302212.

The previous prime is 911021111053. The next prime is 911021111129. The reversal of 911021111122 is 221111120119.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 911021111093 and 911021111102.

It is not an unprimeable number, because it can be changed into a prime (911021111129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136622508 + ... + 136629175.

It is an arithmetic number, because the mean of its divisors is an integer number (170918928342).

Almost surely, 2^911021111122 is an apocalyptic number.

911021111122 is a deficient number, since it is larger than the sum of its proper divisors (456330315614).

911021111122 is a wasteful number, since it uses less digits than its factorization.

911021111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273253352.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 911021111122 in words is "nine hundred eleven billion, twenty-one million, one hundred eleven thousand, one hundred twenty-two".