11022012091 has 16 divisors (see below), whose sum is σ = 11744126784. Its totient is φ = 10322256384.

The previous prime is 11022012073. The next prime is 11022012121. The reversal of 11022012091 is 19021022011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11022012091 - 2⁵ = 11022012059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11022012011) 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 15 ways as a sum of consecutive naturals, for example, 206065 + ... + 253981.

It is an arithmetic number, because the mean of its divisors is an integer number (734007924).

Almost surely, 2^11022012091 is an apocalyptic number.

11022012091 is a deficient number, since it is larger than the sum of its proper divisors (722114693).

11022012091 is a wasteful number, since it uses less digits than its factorization.

11022012091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48150.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 11022012091 in words is "eleven billion, twenty-two million, twelve thousand, ninety-one".