11011120220015 has 4 divisors (see below), whose sum is σ = 13213344264024. Its totient is φ = 8808896176008.

The previous prime is 11011120219997. The next prime is 11011120220017. The reversal of 11011120220015 is 51002202111011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011120220015 is a prime.

It is a super-3 number, since 3×11011120220015³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011120219975 and 11011120220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011120220017) 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, 1101112021997 + ... + 1101112022006.

It is an arithmetic number, because the mean of its divisors is an integer number (3303336066006).

Almost surely, 2^{11011120220015} is an apocalyptic number.

11011120220015 is a deficient number, since it is larger than the sum of its proper divisors (2202224044009).

11011120220015 is an equidigital number, since it uses as much as digits as its factorization.

11011120220015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202224044008.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 11011120220015 its reverse (51002202111011), we get a palindrome (62013322331026).

The spelling of 11011120220015 in words is "eleven trillion, eleven billion, one hundred twenty million, two hundred twenty thousand, fifteen".