21103334440202 has 24 divisors (see below), whose sum is σ = 36824219074980. Its totient is φ = 9044027341440.

The previous prime is 21103334440171. The next prime is 21103334440219. The reversal of 21103334440202 is 20204443330112.

It can be written as a sum of positive squares in 2 ways, for example, as 21095272375681 + 8062064521 = 4592959^2 + 89789^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379874 + ... + 6507762.

Almost surely, 2^{21103334440202} is an apocalyptic number.

21103334440202 is a deficient number, since it is larger than the sum of its proper divisors (15720884634778).

21103334440202 is a wasteful number, since it uses less digits than its factorization.

21103334440202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6163046 (or 6163039 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 21103334440202 its reverse (20204443330112), we get a palindrome (41307777770314).

The spelling of 21103334440202 in words is "twenty-one trillion, one hundred three billion, three hundred thirty-four million, four hundred forty thousand, two hundred two".