22215050450 has 12 divisors (see below), whose sum is σ = 41319993930. Its totient is φ = 8886020160.

The previous prime is 22215050449. The next prime is 22215050479. The reversal of 22215050450 is 5405051222.

It can be written as a sum of positive squares in 3 ways, for example, as 15281657161 + 6933393289 = 123619^2 + 83267^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222150455 + ... + 222150554.

Almost surely, 2^22215050450 is an apocalyptic number.

22215050450 is a deficient number, since it is larger than the sum of its proper divisors (19104943480).

22215050450 is a wasteful number, since it uses less digits than its factorization.

22215050450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444301021 (or 444301016 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The spelling of 22215050450 in words is "twenty-two billion, two hundred fifteen million, fifty thousand, four hundred fifty".