12020021122004 has 24 divisors (see below), whose sum is σ = 24045598308480. Its totient is φ = 5150247038496.

The previous prime is 12020021122003. The next prime is 12020021122013. The reversal of 12020021122004 is 40022112002021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020021122003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49484399 + ... + 49726710.

It is an arithmetic number, because the mean of its divisors is an integer number (1001899929520).

Almost surely, 2^{12020021122004} is an apocalyptic number.

12020021122004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12020021122004 is an abundant number, since it is smaller than the sum of its proper divisors (12025577186476).

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

12020021122004 is a wasteful number, since it uses less digits than its factorization.

12020021122004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99215447 (or 99215445 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12020021122004 its reverse (40022112002021), we get a palindrome (52042133124025).

The spelling of 12020021122004 in words is "twelve trillion, twenty billion, twenty-one million, one hundred twenty-two thousand, four".