1211240004204 has 24 divisors (see below), whose sum is σ = 2992475305008. Its totient is φ = 379996864000.

The previous prime is 1211240004089. The next prime is 1211240004209. The reversal of 1211240004204 is 4024000421121.

It is not an unprimeable number, because it can be changed into a prime (1211240004209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2968725297 + ... + 2968725704.

It is an arithmetic number, because the mean of its divisors is an integer number (124686471042).

Almost surely, 2^{1211240004204} is an apocalyptic number.

It is an amenable number.

1211240004204 is an abundant number, since it is smaller than the sum of its proper divisors (1781235300804).

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

1211240004204 is a wasteful number, since it uses less digits than its factorization.

1211240004204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937451025 (or 5937451023 counting only the distinct ones).

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

Adding to 1211240004204 its reverse (4024000421121), we get a palindrome (5235240425325).

The spelling of 1211240004204 in words is "one trillion, two hundred eleven billion, two hundred forty million, four thousand, two hundred four".