2021204324412 has 144 divisors (see below), whose sum is σ = 6294883288512. Its totient is φ = 532497576960.

The previous prime is 2021204324371. The next prime is 2021204324413. The reversal of 2021204324412 is 2144234021202.

It is a happy number.

2021204324412 is a `hidden beast` number, since 2 + 0 + 21 + 204 + 3 + 24 + 412 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021204324413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2754888 + ... + 3410544.

Almost surely, 2^{2021204324412} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021204324412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3147441644256).

2021204324412 is an abundant number, since it is smaller than the sum of its proper divisors (4273678964100).

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

2021204324412 is a wasteful number, since it uses less digits than its factorization.

2021204324412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656628 (or 656623 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 2021204324412 its reverse (2144234021202), we get a palindrome (4165438345614).

The spelling of 2021204324412 in words is "two trillion, twenty-one billion, two hundred four million, three hundred twenty-four thousand, four hundred twelve".