221441402004 has 24 divisors (see below), whose sum is σ = 516726735168. Its totient is φ = 73809496320.

The previous prime is 221441401981. The next prime is 221441402011. The reversal of 221441402004 is 400204144122.

221441402004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×221441402004³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320157 + ... + 738500.

It is an arithmetic number, because the mean of its divisors is an integer number (21530280632).

Almost surely, 2^221441402004 is an apocalyptic number.

It is an amenable number.

221441402004 is an abundant number, since it is smaller than the sum of its proper divisors (295285333164).

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

221441402004 is a wasteful number, since it uses less digits than its factorization.

221441402004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076095 (or 1076093 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 221441402004 its reverse (400204144122), we get a palindrome (621645546126).

The spelling of 221441402004 in words is "two hundred twenty-one billion, four hundred forty-one million, four hundred two thousand, four".