22006022 has 4 divisors (see below), whose sum is σ = 33009036. Its totient is φ = 11003010.

The previous prime is 22005989. The next prime is 22006037. The reversal of 22006022 is 22060022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22060022 = 2 ⋅11030011.

It is a junction number, because it is equal to n+sod(n) for n = 22005988 and 22006006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501504 + ... + 5501507.

It is an arithmetic number, because the mean of its divisors is an integer number (8252259).

Almost surely, 2^22006022 is an apocalyptic number.

22006022 is a deficient number, since it is larger than the sum of its proper divisors (11003014).

22006022 is a wasteful number, since it uses less digits than its factorization.

22006022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11003013.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22006022 is about 4691.0576632568. The cubic root of 22006022 is about 280.2294972193.

Adding to 22006022 its reverse (22060022), we get a palindrome (44066044).

The spelling of 22006022 in words is "twenty-two million, six thousand, twenty-two".