11121202199 has 4 divisors (see below), whose sum is σ = 11504691960. Its totient is φ = 10737712440.

The previous prime is 11121202133. The next prime is 11121202201. The reversal of 11121202199 is 99120212111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11121202199 - 2⁸ = 11121201943 is a prime.

It is a super-2 number, since 2×11121202199² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 383489731 = 11121202199 / (1 + 1 + 1 + 2 + 1 + 2 + 0 + 2 + 1 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121222199) 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, 191744837 + ... + 191744894.

It is an arithmetic number, because the mean of its divisors is an integer number (2876172990).

Almost surely, 2^11121202199 is an apocalyptic number.

11121202199 is a deficient number, since it is larger than the sum of its proper divisors (383489761).

11121202199 is an equidigital number, since it uses as much as digits as its factorization.

11121202199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383489760.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 11121202199 in words is "eleven billion, one hundred twenty-one million, two hundred two thousand, one hundred ninety-nine".