11201021018 has 16 divisors (see below), whose sum is σ = 19293625440. Its totient is φ = 4823406000.

The previous prime is 11201021011. The next prime is 11201021087. The reversal of 11201021018 is 81012010211.

It is a junction number, because it is equal to n+sod(n) for n = 11201020987 and 11201021005.

It is not an unprimeable number, because it can be changed into a prime (11201021011) 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, 13397933 + ... + 13398768.

It is an arithmetic number, because the mean of its divisors is an integer number (1205851590).

Almost surely, 2^11201021018 is an apocalyptic number.

11201021018 is a deficient number, since it is larger than the sum of its proper divisors (8092604422).

11201021018 is a wasteful number, since it uses less digits than its factorization.

11201021018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26796733.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11201021018 its reverse (81012010211), we get a palindrome (92213031229).

The spelling of 11201021018 in words is "eleven billion, two hundred one million, twenty-one thousand, eighteen".