22265100000 has 864 divisors, whose sum is σ = 93513577248. Its totient is φ = 4953600000.

The previous prime is 22265099993. The next prime is 22265100037. The reversal of 22265100000 is 156222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 128699914 + ... + 128700086.

It is an arithmetic number, because the mean of its divisors is an integer number (108233307).

Almost surely, 2^22265100000 is an apocalyptic number.

22265100000 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 22265100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46756788624).

22265100000 is an abundant number, since it is smaller than the sum of its proper divisors (71248477248).

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

22265100000 is a wasteful number, since it uses less digits than its factorization.

22265100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 22265100000 its reverse (156222), we get a palindrome (22265256222).

It can be divided in two parts, 22265 and 100000, that added together give a triangular number (122265 = T₄₉₄).

The spelling of 22265100000 in words is "twenty-two billion, two hundred sixty-five million, one hundred thousand".