1212231003120 has 160 divisors (see below), whose sum is σ = 4216001587200. Its totient is φ = 320123079936.

The previous prime is 1212231003107. The next prime is 1212231003157. The reversal of 1212231003120 is 213001322121.

1212231003120 is a `hidden beast` number, since 1 + 21 + 22 + 310 + 0 + 312 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1212231003093 and 1212231003102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2501880 + ... + 2946839.

It is an arithmetic number, because the mean of its divisors is an integer number (26350009920).

Almost surely, 2^{1212231003120} is an apocalyptic number.

1212231003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212231003120 is an abundant number, since it is smaller than the sum of its proper divisors (3003770584080).

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

1212231003120 is a wasteful number, since it uses less digits than its factorization.

1212231003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448844 (or 5448832 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1212231003120 its reverse (213001322121), we get a palindrome (1425232325241).

The spelling of 1212231003120 in words is "one trillion, two hundred twelve billion, two hundred thirty-one million, three thousand, one hundred twenty".