22102021120 has 88 divisors (see below), whose sum is σ = 55324416384. Its totient is φ = 8456380416.

The previous prime is 22102021061. The next prime is 22102021121. The reversal of 22102021120 is 2112020122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22102021120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102021121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23917 + ... + 211603.

Almost surely, 2^22102021120 is an apocalyptic number.

22102021120 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 22102021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27662208192).

22102021120 is an abundant number, since it is smaller than the sum of its proper divisors (33222395264).

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

22102021120 is a wasteful number, since it uses less digits than its factorization.

22102021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187735 (or 187717 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22102021120 its reverse (2112020122), we get a palindrome (24214041242).

The spelling of 22102021120 in words is "twenty-two billion, one hundred two million, twenty-one thousand, one hundred twenty".