22271051250 has 450 divisors, whose sum is σ = 73639620747. Its totient is φ = 5014548000.

The previous prime is 22271051249. The next prime is 22271051251. The reversal of 22271051250 is 5215017222.

It is an interprime number because it is at equal distance from previous prime (22271051249) and next prime (22271051251).

It can be written as a sum of positive squares in 3 ways, for example, as 5149067049 + 17121984201 = 71757^2 + 130851^2 .

It is a tau number, because it is divible by the number of its divisors (450).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105525.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22271051251) by changing a digit.

It is a polite number, since it can be written in 224 ways as a sum of consecutive naturals, for example, 332403717 + ... + 332403783.

Almost surely, 2^22271051250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22271051250

22271051250 is an abundant number, since it is smaller than the sum of its proper divisors (51368569497).

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

22271051250 is an frugal number, since it uses more digits than its factorization.

22271051250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

Adding to 22271051250 its reverse (5215017222), we get a palindrome (27486068472).

The spelling of 22271051250 in words is "twenty-two billion, two hundred seventy-one million, fifty-one thousand, two hundred fifty".