22011111330 has 128 divisors (see below), whose sum is σ = 58783076352. Its totient is φ = 5240325888.

The previous prime is 22011111289. The next prime is 22011111361. The reversal of 22011111330 is 3311111022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1720939 + ... + 1733681.

It is an arithmetic number, because the mean of its divisors is an integer number (459242784).

Almost surely, 2^22011111330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22011111330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29391538176).

22011111330 is an abundant number, since it is smaller than the sum of its proper divisors (36771965022).

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

22011111330 is a wasteful number, since it uses less digits than its factorization.

22011111330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12912.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 22011111330 its reverse (3311111022), we get a palindrome (25322222352).

The spelling of 22011111330 in words is "twenty-two billion, eleven million, one hundred eleven thousand, three hundred thirty".