22022422 has 4 divisors (see below), whose sum is σ = 33033636. Its totient is φ = 11011210.

The previous prime is 22022417. The next prime is 22022447. The reversal of 22022422 is 22422022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22022396 and 22022405.

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, 5505604 + ... + 5505607.

It is an arithmetic number, because the mean of its divisors is an integer number (8258409).

Almost surely, 2^22022422 is an apocalyptic number.

22022422 is a deficient number, since it is larger than the sum of its proper divisors (11011214).

22022422 is a wasteful number, since it uses less digits than its factorization.

22022422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011213.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 22022422 is about 4692.8053443543. The cubic root of 22022422 is about 280.2990936622.

Adding to 22022422 its reverse (22422022), we get a palindrome (44444444).

It can be divided in two parts, 2202 and 2422, that added together give a square (4624 = 68²).

The spelling of 22022422 in words is "twenty-two million, twenty-two thousand, four hundred twenty-two".