1004120155212 has 48 divisors (see below), whose sum is σ = 2374046236800. Its totient is φ = 330288320512.

The previous prime is 1004120155153. The next prime is 1004120155217. The reversal of 1004120155212 is 2125510214001.

It is a happy number.

It is a super-2 number, since 2×1004120155212² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1004120155217) 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 15 ways as a sum of consecutive naturals, for example, 1191462 + ... + 1851437.

It is an arithmetic number, because the mean of its divisors is an integer number (49459296600).

Almost surely, 2^{1004120155212} is an apocalyptic number.

1004120155212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1004120155212 is an abundant number, since it is smaller than the sum of its proper divisors (1369926081588).

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

1004120155212 is a wasteful number, since it uses less digits than its factorization.

1004120155212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043270 (or 3043268 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 1004120155212 its reverse (2125510214001), we get a palindrome (3129630369213).

The spelling of 1004120155212 in words is "one trillion, four billion, one hundred twenty million, one hundred fifty-five thousand, two hundred twelve".