11210101220 has 24 divisors (see below), whose sum is σ = 23547082104. Its totient is φ = 4482922496.

The previous prime is 11210101193. The next prime is 11210101277. The reversal of 11210101220 is 2210101211.

It can be written as a sum of positive squares in 4 ways, for example, as 1084911844 + 10125189376 = 32938^2 + 100624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14852 + ... + 150468.

It is an arithmetic number, because the mean of its divisors is an integer number (981128421).

Almost surely, 2^11210101220 is an apocalyptic number.

11210101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210101220 is an abundant number, since it is smaller than the sum of its proper divisors (12336980884).

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

11210101220 is a wasteful number, since it uses less digits than its factorization.

11210101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139759 (or 139757 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11210101220 its reverse (2210101211), we get a palindrome (13420202431).

Subtracting from 11210101220 its reverse (2210101211), we obtain a palindrome (9000000009).

The spelling of 11210101220 in words is "eleven billion, two hundred ten million, one hundred one thousand, two hundred twenty".