11222202220220 has 12 divisors (see below), whose sum is σ = 23566624662504. Its totient is φ = 4488880888080.

The previous prime is 11222202220213. The next prime is 11222202220231. The reversal of 11222202220220 is 2202220222211.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 561110111011 = 11222202220220 / (1 + 1 + 2 + 2 + 2 + 2 + 0 + 2 + 2 + 2 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 11222202220192 and 11222202220201.

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, 280555055486 + ... + 280555055525.

It is an arithmetic number, because the mean of its divisors is an integer number (1963885388542).

Almost surely, 2^{11222202220220} is an apocalyptic number.

11222202220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222202220220 is an abundant number, since it is smaller than the sum of its proper divisors (12344422442284).

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

11222202220220 is a wasteful number, since it uses less digits than its factorization.

11222202220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561110111020 (or 561110111018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 11222202220220 its reverse (2202220222211), we get a palindrome (13424422442431).

The spelling of 11222202220220 in words is "eleven trillion, two hundred twenty-two billion, two hundred two million, two hundred twenty thousand, two hundred twenty".