11220012012011 has 4 divisors (see below), whose sum is σ = 12240013104024. Its totient is φ = 10200010920000.

The previous prime is 11220012011977. The next prime is 11220012012023. The reversal of 11220012012011 is 11021021002211.

11220012012011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11220012012011 - 2¹⁴ = 11220011995627 is a prime.

It is a super-3 number, since 3×11220012012011³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220012002011) 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, 510000545990 + ... + 510000546011.

It is an arithmetic number, because the mean of its divisors is an integer number (3060003276006).

Almost surely, 2^{11220012012011} is an apocalyptic number.

11220012012011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11220012012011 is a deficient number, since it is larger than the sum of its proper divisors (1020001092013).

11220012012011 is a wasteful number, since it uses less digits than its factorization.

11220012012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020001092012.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11220012012011 its reverse (11021021002211), we get a palindrome (22241033014222).

The spelling of 11220012012011 in words is "eleven trillion, two hundred twenty billion, twelve million, twelve thousand, eleven".