21003112322 has 8 divisors (see below), whose sum is σ = 31662984000. Its totient is φ = 10448784324.

The previous prime is 21003112313. The next prime is 21003112327. The reversal of 21003112322 is 22321130012.

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

It is a super-2 number, since 2×21003112322² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21003112322.

It is not an unprimeable number, because it can be changed into a prime (21003112327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26385422 + ... + 26386217.

It is an arithmetic number, because the mean of its divisors is an integer number (3957873000).

Almost surely, 2^21003112322 is an apocalyptic number.

21003112322 is a deficient number, since it is larger than the sum of its proper divisors (10659871678).

21003112322 is a wasteful number, since it uses less digits than its factorization.

21003112322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52771840.

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

Adding to 21003112322 its reverse (22321130012), we get a palindrome (43324242334).

The spelling of 21003112322 in words is "twenty-one billion, three million, one hundred twelve thousand, three hundred twenty-two".