22211100201020 has 96 divisors (see below), whose sum is σ = 48861507719808. Its totient is φ = 8464964124672.

The previous prime is 22211100201007. The next prime is 22211100201047. The reversal of 22211100201020 is 2010200111222.

It is a junction number, because it is equal to n+sod(n) for n = 22211100200986 and 22211100201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460854044 + ... + 460902236.

It is an arithmetic number, because the mean of its divisors is an integer number (508974038748).

Almost surely, 2^{22211100201020} is an apocalyptic number.

22211100201020 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 22211100201020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24430753859904).

22211100201020 is an abundant number, since it is smaller than the sum of its proper divisors (26650407518788).

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

22211100201020 is a wasteful number, since it uses less digits than its factorization.

22211100201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52119 (or 52117 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22211100201020 its reverse (2010200111222), we get a palindrome (24221300312242).

The spelling of 22211100201020 in words is "twenty-two trillion, two hundred eleven billion, one hundred million, two hundred one thousand, twenty".