1211424204 has 24 divisors (see below), whose sum is σ = 2828029680. Its totient is φ = 403611904.

The previous prime is 1211424161. The next prime is 1211424209. The reversal of 1211424204 is 4024241121.

It is a super-3 number, since 3×1211424204³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1211424209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392 + ... + 49280.

It is an arithmetic number, because the mean of its divisors is an integer number (117834570).

Almost surely, 2^1211424204 is an apocalyptic number.

It is an amenable number.

1211424204 is an abundant number, since it is smaller than the sum of its proper divisors (1616605476).

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

1211424204 is a wasteful number, since it uses less digits than its factorization.

1211424204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49049 (or 49047 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1211424204 is about 34805.5197346628. The cubic root of 1211424204 is about 1066.0201541011.

Adding to 1211424204 its reverse (4024241121), we get a palindrome (5235665325).

The spelling of 1211424204 in words is "one billion, two hundred eleven million, four hundred twenty-four thousand, two hundred four".