11202211220 has 48 divisors (see below), whose sum is σ = 24292773120. Its totient is φ = 4336488576.

The previous prime is 11202211219. The next prime is 11202211247. The reversal of 11202211220 is 2211220211.

11202211220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11202211195 and 11202211204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33989 + ... + 153491.

It is an arithmetic number, because the mean of its divisors is an integer number (506099440).

Almost surely, 2^11202211220 is an apocalyptic number.

11202211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11202211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12146386560).

11202211220 is an abundant number, since it is smaller than the sum of its proper divisors (13090561900).

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

11202211220 is a wasteful number, since it uses less digits than its factorization.

11202211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119664 (or 119662 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11202211220 its reverse (2211220211), we get a palindrome (13413431431).

The spelling of 11202211220 in words is "eleven billion, two hundred two million, two hundred eleven thousand, two hundred twenty".