21003223000001 has 4 divisors (see below), whose sum is σ = 22912606909104. Its totient is φ = 19093839090900.

The previous prime is 21003222999907. The next prime is 21003223000027. The reversal of 21003223000001 is 10000032230012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21003223000001 - 2¹⁰ = 21003222998977 is a prime.

It is a super-2 number, since 2×21003223000001² (a number of 27 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 21003223000001.

It is not an unprimeable number, because it can be changed into a prime (21003223005001) 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, 954691954535 + ... + 954691954556.

It is an arithmetic number, because the mean of its divisors is an integer number (5728151727276).

Almost surely, 2^{21003223000001} is an apocalyptic number.

It is an amenable number.

21003223000001 is a deficient number, since it is larger than the sum of its proper divisors (1909383909103).

21003223000001 is a wasteful number, since it uses less digits than its factorization.

21003223000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909383909102.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21003223000001 its reverse (10000032230012), we get a palindrome (31003255230013).

The spelling of 21003223000001 in words is "twenty-one trillion, three billion, two hundred twenty-three million, one", and thus it is an aban number.