22110201020 has 48 divisors (see below), whose sum is σ = 49244938848. Its totient is φ = 8309913600.

The previous prime is 22110201019. The next prime is 22110201053. The reversal of 22110201020 is 2010201122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22110200992 and 22110201010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150239 + ... + 258441.

It is an arithmetic number, because the mean of its divisors is an integer number (1025936226).

Almost surely, 2^22110201020 is an apocalyptic number.

22110201020 is a gapful number since it is divisible by the number (20) 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 22110201020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24622469424).

22110201020 is an abundant number, since it is smaller than the sum of its proper divisors (27134737828).

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

22110201020 is a wasteful number, since it uses less digits than its factorization.

22110201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108830 (or 108828 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22110201020 its reverse (2010201122), we get a palindrome (24120402142).

The spelling of 22110201020 in words is "twenty-two billion, one hundred ten million, two hundred one thousand, twenty".