1222201204 has 12 divisors (see below), whose sum is σ = 2444402464. Its totient is φ = 523800504.

The previous prime is 1222201157. The next prime is 1222201217. The reversal of 1222201204 is 4021022221.

1222201204 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21824994 + ... + 21825049.

Almost surely, 2^1222201204 is an apocalyptic number.

1222201204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1222201204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222201204 is a wasteful number, since it uses less digits than its factorization.

1222201204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43650054 (or 43650052 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1222201204 is about 34959.9943363840. The cubic root of 1222201204 is about 1069.1719811754.

Adding to 1222201204 its reverse (4021022221), we get a palindrome (5243223425).

The spelling of 1222201204 in words is "one billion, two hundred twenty-two million, two hundred one thousand, two hundred four".