11122221121099 has 24 divisors (see below), whose sum is σ = 12347774827920. Its totient is φ = 10009798920000.

The previous prime is 11122221121031. The next prime is 11122221121127. The reversal of 11122221121099 is 99012112222111.

It is a happy number.

11122221121099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11122221121099 - 2⁴³ = 2326128098891 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122221128099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111051057 + ... + 111151165.

It is an arithmetic number, because the mean of its divisors is an integer number (514490617830).

Almost surely, 2^{11122221121099} is an apocalyptic number.

11122221121099 is a deficient number, since it is larger than the sum of its proper divisors (1225553706821).

11122221121099 is a wasteful number, since it uses less digits than its factorization.

11122221121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109323 (or 109312 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 11122221121099 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-one thousand, ninety-nine".