21121003322 has 8 divisors (see below), whose sum is σ = 31684602036. Its totient is φ = 10559469312.

The previous prime is 21121003301. The next prime is 21121003331. The reversal of 21121003322 is 22330012112.

It can be written as a sum of positive squares in 2 ways, for example, as 21001516561 + 119486761 = 144919^2 + 10931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21121003322.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490343 + ... + 531674.

Almost surely, 2^21121003322 is an apocalyptic number.

21121003322 is a deficient number, since it is larger than the sum of its proper divisors (10563598714).

21121003322 is a wasteful number, since it uses less digits than its factorization.

21121003322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032352.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21121003322 its reverse (22330012112), we get a palindrome (43451015434).

The spelling of 21121003322 in words is "twenty-one billion, one hundred twenty-one million, three thousand, three hundred twenty-two".