11201021010 has 80 divisors (see below), whose sum is σ = 30184361856. Its totient is φ = 2980387872.

The previous prime is 11201021009. The next prime is 11201021011. The reversal of 11201021010 is 1012010211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11201021009) and next prime (11201021011).

It is a super-2 number, since 2×11201021010² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11201020983 and 11201021001.

It is not an unprimeable number, because it can be changed into a prime (11201021011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 360097 + ... + 389963.

Almost surely, 2^11201021010 is an apocalyptic number.

11201021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11201021010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15092180928).

11201021010 is an abundant number, since it is smaller than the sum of its proper divisors (18983340846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11201021010 is a wasteful number, since it uses less digits than its factorization.

11201021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30349 (or 30340 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11201021010 its reverse (1012010211), we get a palindrome (12213031221).

The spelling of 11201021010 in words is "eleven billion, two hundred one million, twenty-one thousand, ten".