21222023103 has 24 divisors (see below), whose sum is σ = 31409114880. Its totient is φ = 13800402000.

The previous prime is 21222023099. The next prime is 21222023107. The reversal of 21222023103 is 30132022212.

21222023103 is a `hidden beast` number, since 212 + 220 + 231 + 0 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (21222023099) and next prime (21222023107).

It is not a de Polignac number, because 21222023103 - 2² = 21222023099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222023107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254128 + ... + 327146.

It is an arithmetic number, because the mean of its divisors is an integer number (1308713120).

Almost surely, 2^21222023103 is an apocalyptic number.

21222023103 is a deficient number, since it is larger than the sum of its proper divisors (10187091777).

21222023103 is a wasteful number, since it uses less digits than its factorization.

21222023103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73819 (or 73816 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21222023103 its reverse (30132022212), we get a palindrome (51354045315).

The spelling of 21222023103 in words is "twenty-one billion, two hundred twenty-two million, twenty-three thousand, one hundred three".