22420022 has 4 divisors (see below), whose sum is σ = 33630036. Its totient is φ = 11210010.

The previous prime is 22420003. The next prime is 22420033. The reversal of 22420022 is 22002422.

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 = 22419979 and 22420006.

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, 5605004 + ... + 5605007.

It is an arithmetic number, because the mean of its divisors is an integer number (8407509).

Almost surely, 2^22420022 is an apocalyptic number.

22420022 is a deficient number, since it is larger than the sum of its proper divisors (11210014).

22420022 is a wasteful number, since it uses less digits than its factorization.

22420022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210013.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 22420022 is about 4734.9785638374. The cubic root of 22420022 is about 281.9759129704.

Adding to 22420022 its reverse (22002422), we get a palindrome (44422444).

The spelling of 22420022 in words is "twenty-two million, four hundred twenty thousand, twenty-two".