1222364205 has 24 divisors (see below), whose sum is σ = 2135457792. Its totient is φ = 646791264.

The previous prime is 1222364189. The next prime is 1222364237. The reversal of 1222364205 is 5024632221.

It is a happy number.

1222364205 is a `hidden beast` number, since 1 + 2 + 2 + 236 + 420 + 5 = 666.

It is not a de Polignac number, because 1222364205 - 2⁴ = 1222364189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101229 + ... + 112658.

It is an arithmetic number, because the mean of its divisors is an integer number (88977408).

Almost surely, 2^1222364205 is an apocalyptic number.

1222364205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222364205 is a deficient number, since it is larger than the sum of its proper divisors (913093587).

1222364205 is a wasteful number, since it uses less digits than its factorization.

1222364205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214025 (or 214022 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1222364205 is about 34962.3255090390. The cubic root of 1222364205 is about 1069.2195097259.

Adding to 1222364205 its reverse (5024632221), we get a palindrome (6246996426).

The spelling of 1222364205 in words is "one billion, two hundred twenty-two million, three hundred sixty-four thousand, two hundred five".