22021046 has 4 divisors (see below), whose sum is σ = 33031572. Its totient is φ = 11010522.

The previous prime is 22021009. The next prime is 22021049. The reversal of 22021046 is 64012022.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505260 + ... + 5505263.

It is an arithmetic number, because the mean of its divisors is an integer number (8257893).

Almost surely, 2^22021046 is an apocalyptic number.

22021046 is a deficient number, since it is larger than the sum of its proper divisors (11010526).

22021046 is a wasteful number, since it uses less digits than its factorization.

22021046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010525.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22021046 is about 4692.6587346620. The cubic root of 22021046 is about 280.2932556790.

Adding to 22021046 its reverse (64012022), we get a palindrome (86033068).

The spelling of 22021046 in words is "twenty-two million, twenty-one thousand, forty-six".