1211242204 has 6 divisors (see below), whose sum is σ = 2119673864. Its totient is φ = 605621100.

The previous prime is 1211242187. The next prime is 1211242223. The reversal of 1211242204 is 4022421121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151405272 + ... + 151405279.

Almost surely, 2^1211242204 is an apocalyptic number.

It is an amenable number.

1211242204 is a deficient number, since it is larger than the sum of its proper divisors (908431660).

1211242204 is a wasteful number, since it uses less digits than its factorization.

1211242204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302810555 (or 302810553 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1211242204 is about 34802.9051086256. The cubic root of 1211242204 is about 1065.9667664206.

Adding to 1211242204 its reverse (4022421121), we get a palindrome (5233663325).

The spelling of 1211242204 in words is "one billion, two hundred eleven million, two hundred forty-two thousand, two hundred four".