2124221205 has 8 divisors (see below), whose sum is σ = 3398753952. Its totient is φ = 1132917968.

The previous prime is 2124221201. The next prime is 2124221219. The reversal of 2124221205 is 5021224212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2124221205 - 2² = 2124221201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124221201) 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 7 ways as a sum of consecutive naturals, for example, 70807359 + ... + 70807388.

It is an arithmetic number, because the mean of its divisors is an integer number (424844244).

Almost surely, 2^2124221205 is an apocalyptic number.

It is an amenable number.

2124221205 is a deficient number, since it is larger than the sum of its proper divisors (1274532747).

2124221205 is a wasteful number, since it uses less digits than its factorization.

2124221205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141614755.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2124221205 is about 46089.2742945688. The cubic root of 2124221205 is about 1285.4837172170.

Adding to 2124221205 its reverse (5021224212), we get a palindrome (7145445417).

The spelling of 2124221205 in words is "two billion, one hundred twenty-four million, two hundred twenty-one thousand, two hundred five".