11021121199 has 32 divisors (see below), whose sum is σ = 13149013824. Its totient is φ = 9124577280.

The previous prime is 11021121191. The next prime is 11021121211. The reversal of 11021121199 is 99112112011.

It is a happy number.

It is not a de Polignac number, because 11021121199 - 2³ = 11021121191 is a prime.

It is a super-2 number, since 2×11021121199² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021121191) 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 31 ways as a sum of consecutive naturals, for example, 715887 + ... + 731119.

It is an arithmetic number, because the mean of its divisors is an integer number (410906682).

Almost surely, 2^11021121199 is an apocalyptic number.

11021121199 is a deficient number, since it is larger than the sum of its proper divisors (2127892625).

11021121199 is a wasteful number, since it uses less digits than its factorization.

11021121199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15387.

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 11021121199 in words is "eleven billion, twenty-one million, one hundred twenty-one thousand, one hundred ninety-nine".