22221022 has 8 divisors (see below), whose sum is σ = 33354000. Its totient is φ = 11103024.

The previous prime is 22221007. The next prime is 22221029. The reversal of 22221022 is 22012222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22220993 and 22221011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354 + ... + 6802.

It is an arithmetic number, because the mean of its divisors is an integer number (4169250).

Almost surely, 2^22221022 is an apocalyptic number.

22221022 is a deficient number, since it is larger than the sum of its proper divisors (11132978).

22221022 is a wasteful number, since it uses less digits than its factorization.

22221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7490.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22221022 is about 4713.9179034005. The cubic root of 22221022 is about 281.1391601430.

Adding to 22221022 its reverse (22012222), we get a palindrome (44233244).

The spelling of 22221022 in words is "twenty-two million, two hundred twenty-one thousand, twenty-two".