22002123 has 16 divisors (see below), whose sum is σ = 34465536. Its totient is φ = 12308640.

The previous prime is 22002121. The next prime is 22002163. The reversal of 22002123 is 32120022.

It is not a de Polignac number, because 22002123 - 2¹ = 22002121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22002099 and 22002108.

It is not an unprimeable number, because it can be changed into a prime (22002121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25215 + ... + 26072.

It is an arithmetic number, because the mean of its divisors is an integer number (2154096).

Almost surely, 2^22002123 is an apocalyptic number.

22002123 is a deficient number, since it is larger than the sum of its proper divisors (12463413).

22002123 is a wasteful number, since it uses less digits than its factorization.

22002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51314.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22002123 is about 4690.6420669243. The cubic root of 22002123 is about 280.2129460021.

Adding to 22002123 its reverse (32120022), we get a palindrome (54122145).

The spelling of 22002123 in words is "twenty-two million, two thousand, one hundred twenty-three".