11201010121 has 4 divisors (see below), whose sum is σ = 12801154432. Its totient is φ = 9600865812.

The previous prime is 11201010077. The next prime is 11201010151. The reversal of 11201010121 is 12101010211.

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 11201010121 - 2¹⁵ = 11200977353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201010098 and 11201010107.

It is not an unprimeable number, because it can be changed into a prime (11201010151) 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, 800072145 + ... + 800072158.

It is an arithmetic number, because the mean of its divisors is an integer number (3200288608).

Almost surely, 2^11201010121 is an apocalyptic number.

It is an amenable number.

11201010121 is a deficient number, since it is larger than the sum of its proper divisors (1600144311).

11201010121 is an equidigital number, since it uses as much as digits as its factorization.

11201010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600144310.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11201010121 its reverse (12101010211), we get a palindrome (23302020332).

The spelling of 11201010121 in words is "eleven billion, two hundred one million, ten thousand, one hundred twenty-one".