11200000122121 has 4 divisors (see below), whose sum is σ = 11207258710912. Its totient is φ = 11192741533332.

The previous prime is 11200000122067. The next prime is 11200000122139. The reversal of 11200000122121 is 12122100000211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11200000122121 - 2¹¹ = 11200000120073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11200000125121) 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, 3629292081 + ... + 3629295166.

It is an arithmetic number, because the mean of its divisors is an integer number (2801814677728).

Almost surely, 2^{11200000122121} is an apocalyptic number.

It is an amenable number.

11200000122121 is a deficient number, since it is larger than the sum of its proper divisors (7258588791).

11200000122121 is an equidigital number, since it uses as much as digits as its factorization.

11200000122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7258588790.

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

Adding to 11200000122121 its reverse (12122100000211), we get a palindrome (23322100122332).

The spelling of 11200000122121 in words is "eleven trillion, two hundred billion, one hundred twenty-two thousand, one hundred twenty-one".