11121220201011 has 8 divisors (see below), whose sum is σ = 15339614070480. Its totient is φ = 7158486566112.

The previous prime is 11121220200997. The next prime is 11121220201079. The reversal of 11121220201011 is 11010202212111.

It is a happy number.

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

It is not a de Polignac number, because 11121220201011 - 2¹⁰ = 11121220199987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121220301011) 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, 63915058540 + ... + 63915058713.

It is an arithmetic number, because the mean of its divisors is an integer number (1917451758810).

Almost surely, 2^{11121220201011} is an apocalyptic number.

11121220201011 is a deficient number, since it is larger than the sum of its proper divisors (4218393869469).

11121220201011 is a wasteful number, since it uses less digits than its factorization.

11121220201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127830117285.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11121220201011 its reverse (11010202212111), we get a palindrome (22131422413122).

The spelling of 11121220201011 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty million, two hundred one thousand, eleven".