21222202200103 has 4 divisors (see below), whose sum is σ = 21222263933640. Its totient is φ = 21222140466568.

The previous prime is 21222202200091. The next prime is 21222202200179. The reversal of 21222202200103 is 30100220222212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21222202200103 is a prime.

It is a super-2 number, since 2×21222202200103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222202200503) 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, 30348208 + ... + 31039621.

It is an arithmetic number, because the mean of its divisors is an integer number (5305565983410).

Almost surely, 2^{21222202200103} is an apocalyptic number.

21222202200103 is a deficient number, since it is larger than the sum of its proper divisors (61733537).

21222202200103 is an equidigital number, since it uses as much as digits as its factorization.

21222202200103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61733536.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21222202200103 its reverse (30100220222212), we get a palindrome (51322422422315).

The spelling of 21222202200103 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred two million, two hundred thousand, one hundred three".