11222211220000 has 120 divisors (see below), whose sum is σ = 30118171062672. Its totient is φ = 4080804000000.

The previous prime is 11222211219949. The next prime is 11222211220009. The reversal of 11222211220000 is 2211222211.

It is a happy number.

11222211220000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11222211220009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25285026 + ... + 25725025.

Almost surely, 2^{11222211220000} is an apocalyptic number.

11222211220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222211220000 is an abundant number, since it is smaller than the sum of its proper divisors (18895959842672).

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

11222211220000 is an equidigital number, since it uses as much as digits as its factorization.

11222211220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51010092 (or 51010069 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11222211220000 its reverse (2211222211), we get a palindrome (11224422442211).

It can be divided in two parts, 1122 and 2211220000, that added together give a palindrome (2211221122).

The spelling of 11222211220000 in words is "eleven trillion, two hundred twenty-two billion, two hundred eleven million, two hundred twenty thousand".