1101121199 has 4 divisors (see below), whose sum is σ = 1101217464. Its totient is φ = 1101024936.

The previous prime is 1101121183. The next prime is 1101121211. The reversal of 1101121199 is 9911211011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1101121199 - 2⁴ = 1101121183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101121169) 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, 28232 + ... + 54765.

It is an arithmetic number, because the mean of its divisors is an integer number (275304366).

Almost surely, 2^1101121199 is an apocalyptic number.

1101121199 is a deficient number, since it is larger than the sum of its proper divisors (96265).

1101121199 is an equidigital number, since it uses as much as digits as its factorization.

1101121199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96264.

The product of its (nonzero) digits is 162, while the sum is 26.

The square root of 1101121199 is about 33183.1463095349. The cubic root of 1101121199 is about 1032.6307210393.

The spelling of 1101121199 in words is "one billion, one hundred one million, one hundred twenty-one thousand, one hundred ninety-nine".