21122212200003 has 12 divisors (see below), whose sum is σ = 30510293232120. Its totient is φ = 14081275800576.

The previous prime is 21122212199947. The next prime is 21122212200143. The reversal of 21122212200003 is 30000221222112.

It is not a de Polignac number, because 21122212200003 - 2⁸ = 21122212199747 is a prime.

It is a super-2 number, since 2×21122212200003² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122212200203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15909613 + ... + 17186046.

It is an arithmetic number, because the mean of its divisors is an integer number (2542524436010).

Almost surely, 2^{21122212200003} is an apocalyptic number.

21122212200003 is a deficient number, since it is larger than the sum of its proper divisors (9388081032117).

21122212200003 is a wasteful number, since it uses less digits than its factorization.

21122212200003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33166578 (or 33166575 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21122212200003 its reverse (30000221222112), we get a palindrome (51122433422115).

The spelling of 21122212200003 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred thousand, three".