11200122121 has 8 divisors (see below), whose sum is σ = 11863984680. Its totient is φ = 10536818688.

The previous prime is 11200122119. The next prime is 11200122191. The reversal of 11200122121 is 12122100211.

It can be written as a sum of positive squares in 4 ways, for example, as 2488513225 + 8711608896 = 49885^2 + 93336^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11200122121 - 2¹ = 11200122119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11200122191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98176 + ... + 178993.

It is an arithmetic number, because the mean of its divisors is an integer number (1482998085).

Almost surely, 2^11200122121 is an apocalyptic number.

It is an amenable number.

11200122121 is a deficient number, since it is larger than the sum of its proper divisors (663862559).

11200122121 is a wasteful number, since it uses less digits than its factorization.

11200122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279563.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11200122121 its reverse (12122100211), we get a palindrome (23322222332).

The spelling of 11200122121 in words is "eleven billion, two hundred million, one hundred twenty-two thousand, one hundred twenty-one".