4021121420244 has 60 divisors (see below), whose sum is σ = 11130358979124. Its totient is φ = 1261528286976.

The previous prime is 4021121420233. The next prime is 4021121420311. The reversal of 4021121420244 is 4420241211204.

4021121420244 is a `hidden beast` number, since 4 + 0 + 211 + 2 + 1 + 420 + 24 + 4 = 666.

4021121420244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2344536691344 + 1676584728900 = 1531188^2 + 1294830^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 365020039 + ... + 365031054.

Almost surely, 2^{4021121420244} is an apocalyptic number.

It is an amenable number.

4021121420244 is an abundant number, since it is smaller than the sum of its proper divisors (7109237558880).

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

4021121420244 is a wasteful number, since it uses less digits than its factorization.

4021121420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730051126 (or 730051115 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 4021121420244 its reverse (4420241211204), we get a palindrome (8441362631448).

The spelling of 4021121420244 in words is "four trillion, twenty-one billion, one hundred twenty-one million, four hundred twenty thousand, two hundred forty-four".