2208124231845 has 32 divisors (see below), whose sum is σ = 4123621675008. Its totient is φ = 987951021888.

The previous prime is 2208124231813. The next prime is 2208124231913. The reversal of 2208124231845 is 5481324218022.

It is not a de Polignac number, because 2208124231845 - 2⁵ = 2208124231813 is a prime.

It is a super-2 number, since 2×2208124231845² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2208124231797 and 2208124231806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223715859 + ... + 223725728.

It is an arithmetic number, because the mean of its divisors is an integer number (128863177344).

Almost surely, 2^{2208124231845} is an apocalyptic number.

It is an amenable number.

2208124231845 is a deficient number, since it is larger than the sum of its proper divisors (1915497443163).

2208124231845 is a wasteful number, since it uses less digits than its factorization.

2208124231845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447441649.

The product of its (nonzero) digits is 245760, while the sum is 42.

Adding to 2208124231845 its reverse (5481324218022), we get a palindrome (7689448449867).

The spelling of 2208124231845 in words is "two trillion, two hundred eight billion, one hundred twenty-four million, two hundred thirty-one thousand, eight hundred forty-five".