4021020201204 has 144 divisors (see below), whose sum is σ = 10470063820944. Its totient is φ = 1300396032000.

The previous prime is 4021020201193. The next prime is 4021020201227.

4021020201204 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 2623428090000 + 1397592111204 = 1619700^2 + 1182198^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200030754 + ... + 200050854.

Almost surely, 2^{4021020201204} 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 4021020201204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5235031910472).

4021020201204 is an abundant number, since it is smaller than the sum of its proper divisors (6449043619740).

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

4021020201204 is a wasteful number, since it uses less digits than its factorization.

4021020201204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20898 (or 20893 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

It can be divided in two parts, 4021020 and 201204, that added together give a palindrome (4222224).

The spelling of 4021020201204 in words is "four trillion, twenty-one billion, twenty million, two hundred one thousand, two hundred four".