1224125205 has 64 divisors (see below), whose sum is σ = 2222857728. Its totient is φ = 571760640.

The previous prime is 1224125183. The next prime is 1224125213. The reversal of 1224125205 is 5025214221.

It is not a de Polignac number, because 1224125205 - 2⁵ = 1224125173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 214185 + ... + 219825.

It is an arithmetic number, because the mean of its divisors is an integer number (34732152).

Almost surely, 2^1224125205 is an apocalyptic number.

1224125205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224125205 is a deficient number, since it is larger than the sum of its proper divisors (998732523).

1224125205 is a wasteful number, since it uses less digits than its factorization.

1224125205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5726.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1224125205 is about 34987.5006966774. The cubic root of 1224125205 is about 1069.7327206750.

Adding to 1224125205 its reverse (5025214221), we get a palindrome (6249339426).

The spelling of 1224125205 in words is "one billion, two hundred twenty-four million, one hundred twenty-five thousand, two hundred five".