21222201121003 has 6 divisors (see below), whose sum is σ = 22397946335844. Its totient is φ = 20105243166924.

The previous prime is 21222201120941. The next prime is 21222201121019. The reversal of 21222201121003 is 30012110222212.

It is a de Polignac number, because none of the positive numbers 2^k-21222201121003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222201121403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29393630001 + ... + 29393630722.

It is an arithmetic number, because the mean of its divisors is an integer number (3732991055974).

Almost surely, 2^{21222201121003} is an apocalyptic number.

21222201121003 is a deficient number, since it is larger than the sum of its proper divisors (1175745214841).

21222201121003 is an equidigital number, since it uses as much as digits as its factorization.

21222201121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58787260761 (or 58787260742 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21222201121003 its reverse (30012110222212), we get a palindrome (51234311343215).

The spelling of 21222201121003 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty-one thousand, three".