1223040040012 has 24 divisors (see below), whose sum is σ = 2447951675904. Its totient is φ = 523758960912.

The previous prime is 1223040040009. The next prime is 1223040040031. The reversal of 1223040040012 is 2100400403221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16673428 + ... + 16746619.

It is an arithmetic number, because the mean of its divisors is an integer number (101997986496).

Almost surely, 2^{1223040040012} is an apocalyptic number.

It is an amenable number.

1223040040012 is an abundant number, since it is smaller than the sum of its proper divisors (1224911635892).

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

1223040040012 is a wasteful number, since it uses less digits than its factorization.

1223040040012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33421365 (or 33421363 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1223040040012 its reverse (2100400403221), we get a palindrome (3323440443233).

The spelling of 1223040040012 in words is "one trillion, two hundred twenty-three billion, forty million, forty thousand, twelve".