22222532450 has 12 divisors (see below), whose sum is σ = 41333910450. Its totient is φ = 8889012960.

The previous prime is 22222532443. The next prime is 22222532459. The reversal of 22222532450 is 5423522222.

It can be written as a sum of positive squares in 3 ways, for example, as 16674815161 + 5547717289 = 129131^2 + 74483^2 .

It is not an unprimeable number, because it can be changed into a prime (22222532459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222225275 + ... + 222225374.

Almost surely, 2^22222532450 is an apocalyptic number.

22222532450 is a deficient number, since it is larger than the sum of its proper divisors (19111378000).

22222532450 is a wasteful number, since it uses less digits than its factorization.

22222532450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444450661 (or 444450656 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The spelling of 22222532450 in words is "twenty-two billion, two hundred twenty-two million, five hundred thirty-two thousand, four hundred fifty".