1211201204 has 12 divisors (see below), whose sum is σ = 2119953444. Its totient is φ = 605500224.

The previous prime is 1211201107. The next prime is 1211201207. The reversal of 1211201204 is 4021021121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 887920804 + 323280400 = 29798^2 + 17980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211201207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6464 + ... + 49640.

It is an arithmetic number, because the mean of its divisors is an integer number (176662787).

Almost surely, 2^1211201204 is an apocalyptic number.

It is an amenable number.

1211201204 is a deficient number, since it is larger than the sum of its proper divisors (908752240).

1211201204 is a wasteful number, since it uses less digits than its factorization.

1211201204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50194 (or 50192 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1211201204 is about 34802.3160723536. The cubic root of 1211201204 is about 1065.9547387875.

Adding to 1211201204 its reverse (4021021121), we get a palindrome (5232222325).

The spelling of 1211201204 in words is "one billion, two hundred eleven million, two hundred one thousand, two hundred four".