22421022 has 16 divisors (see below), whose sum is σ = 48291600. Its totient is φ = 6898752.

The previous prime is 22420999. The next prime is 22421023. The reversal of 22421022 is 22012422.

It is a junction number, because it is equal to n+sod(n) for n = 22420992 and 22421010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143647 + ... + 143802.

It is an arithmetic number, because the mean of its divisors is an integer number (3018225).

Almost surely, 2^22421022 is an apocalyptic number.

22421022 is an abundant number, since it is smaller than the sum of its proper divisors (25870578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22421022 is a wasteful number, since it uses less digits than its factorization.

22421022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287467.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22421022 is about 4735.0841597589. The cubic root of 22421022 is about 281.9801052310.

Adding to 22421022 its reverse (22012422), we get a palindrome (44433444).

The spelling of 22421022 in words is "twenty-two million, four hundred twenty-one thousand, twenty-two".