11220021210 has 32 divisors (see below), whose sum is σ = 26932645440. Its totient is φ = 2991495168.

The previous prime is 11220021191. The next prime is 11220021217. The reversal of 11220021210 is 1212002211.

It is not an unprimeable number, because it can be changed into a prime (11220021217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167229 + ... + 224511.

It is an arithmetic number, because the mean of its divisors is an integer number (841645170).

Almost surely, 2^11220021210 is an apocalyptic number.

11220021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11220021210 is an abundant number, since it is smaller than the sum of its proper divisors (15712624230).

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

11220021210 is a wasteful number, since it uses less digits than its factorization.

11220021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63822.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11220021210 its reverse (1212002211), we get a palindrome (12432023421).

The spelling of 11220021210 in words is "eleven billion, two hundred twenty million, twenty-one thousand, two hundred ten".