11022223220 has 12 divisors (see below), whose sum is σ = 23146668804. Its totient is φ = 4408889280.

The previous prime is 11022223213. The next prime is 11022223243. The reversal of 11022223220 is 2232222011.

It can be written as a sum of positive squares in 2 ways, for example, as 2509208464 + 8513014756 = 50092^2 + 92266^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275555561 + ... + 275555600.

It is an arithmetic number, because the mean of its divisors is an integer number (1928889067).

Almost surely, 2^11022223220 is an apocalyptic number.

11022223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11022223220 is an abundant number, since it is smaller than the sum of its proper divisors (12124445584).

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

11022223220 is a wasteful number, since it uses less digits than its factorization.

11022223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551111170 (or 551111168 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 11022223220 its reverse (2232222011), we get a palindrome (13254445231).

The spelling of 11022223220 in words is "eleven billion, twenty-two million, two hundred twenty-three thousand, two hundred twenty".