22111020330 has 96 divisors (see below), whose sum is σ = 63399176064. Its totient is φ = 4834186368.

The previous prime is 22111020329. The next prime is 22111020331. The reversal of 22111020330 is 3302011122.

It is an interprime number because it is at equal distance from previous prime (22111020329) and next prime (22111020331).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22111020331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11572 + ... + 210608.

It is an arithmetic number, because the mean of its divisors is an integer number (660408084).

Almost surely, 2^22111020330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22111020330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31699588032).

22111020330 is an abundant number, since it is smaller than the sum of its proper divisors (41288155734).

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

22111020330 is a wasteful number, since it uses less digits than its factorization.

22111020330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199100 (or 199077 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22111020330 its reverse (3302011122), we get a palindrome (25413031452).

The spelling of 22111020330 in words is "twenty-two billion, one hundred eleven million, twenty thousand, three hundred thirty".