11222200020 has 96 divisors (see below), whose sum is σ = 33344317440. Its totient is φ = 2813937280.

The previous prime is 11222199979. The next prime is 11222200027. The reversal of 11222200020 is 2000222211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11222199969 and 11222200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222200027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12505 + ... + 150335.

It is an arithmetic number, because the mean of its divisors is an integer number (347336640).

Almost surely, 2^11222200020 is an apocalyptic number.

11222200020 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 11222200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16672158720).

11222200020 is an abundant number, since it is smaller than the sum of its proper divisors (22122117420).

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

11222200020 is a wasteful number, since it uses less digits than its factorization.

11222200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137925 (or 137923 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 11222200020 its reverse (2000222211), we get a palindrome (13222422231).

The spelling of 11222200020 in words is "eleven billion, two hundred twenty-two million, two hundred thousand, twenty".