1233121230012 has 72 divisors (see below), whose sum is σ = 3392893365456. Its totient is φ = 347494033152.

The previous prime is 1233121229999. The next prime is 1233121230023. The reversal of 1233121230012 is 2100321213321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14321083 + ... + 14406930.

Almost surely, 2^{1233121230012} is an apocalyptic number.

1233121230012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1233121230012 is an abundant number, since it is smaller than the sum of its proper divisors (2159772135444).

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

1233121230012 is a wasteful number, since it uses less digits than its factorization.

1233121230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28728107 (or 28728098 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1233121230012 its reverse (2100321213321), we get a palindrome (3333442443333).

The spelling of 1233121230012 in words is "one trillion, two hundred thirty-three billion, one hundred twenty-one million, two hundred thirty thousand, twelve".