22245540250205 has 16 divisors (see below), whose sum is σ = 27062843202864. Its totient is φ = 17551014243840.

The previous prime is 22245540250169. The next prime is 22245540250231. The reversal of 22245540250205 is 50205204554222.

It can be written as a sum of positive squares in 8 ways, for example, as 1177752369049 + 21067787881156 = 1085243^2 + 4589966^2 .

It is not a de Polignac number, because 22245540250205 - 2¹⁶ = 22245540184669 is a prime.

It is a super-2 number, since 2×22245540250205² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1108487 + ... + 6761643.

It is an arithmetic number, because the mean of its divisors is an integer number (1691427700179).

Almost surely, 2^{22245540250205} is an apocalyptic number.

It is an amenable number.

22245540250205 is a deficient number, since it is larger than the sum of its proper divisors (4817302952659).

22245540250205 is a wasteful number, since it uses less digits than its factorization.

22245540250205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5664016.

The product of its (nonzero) digits is 320000, while the sum is 38.

The spelling of 22245540250205 in words is "twenty-two trillion, two hundred forty-five billion, five hundred forty million, two hundred fifty thousand, two hundred five".