22055250000 has 280 divisors, whose sum is σ = 81412707904. Its totient is φ = 5040000000.

The previous prime is 22055249959. The next prime is 22055250011. The reversal of 22055250000 is 5255022.

It is a tau number, because it is divible by the number of its divisors (280).

It is a super-3 number, since 3×22055250000³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5247900 + ... + 5252100.

Almost surely, 2^22055250000 is an apocalyptic number.

22055250000 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 22055250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40706353952).

22055250000 is an abundant number, since it is smaller than the sum of its proper divisors (59357457904).

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

22055250000 is an frugal number, since it uses more digits than its factorization.

22055250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249 (or 4218 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The spelling of 22055250000 in words is "twenty-two billion, fifty-five million, two hundred fifty thousand".