2021231201004 has 96 divisors (see below), whose sum is σ = 5477741158400. Its totient is φ = 643756688640.

The previous prime is 2021231200999. The next prime is 2021231201029. The reversal of 2021231201004 is 4001021321202.

It is a happy number.

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

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, 3556477 + ... + 4085460.

Almost surely, 2^{2021231201004} is an apocalyptic number.

It is an amenable number.

2021231201004 is an abundant number, since it is smaller than the sum of its proper divisors (3456509957396).

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

2021231201004 is a wasteful number, since it uses less digits than its factorization.

2021231201004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642060 (or 7642052 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2021231201004 its reverse (4001021321202), we get a palindrome (6022252522206).

The spelling of 2021231201004 in words is "two trillion, twenty-one billion, two hundred thirty-one million, two hundred one thousand, four".