22022011 has 4 divisors (see below), whose sum is σ = 24024024. Its totient is φ = 20020000.

The previous prime is 22022009. The next prime is 22022023. The reversal of 22022011 is 11022022.

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

It is not a de Polignac number, because 22022011 - 2¹ = 22022009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22022041) 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, 1000990 + ... + 1001011.

It is an arithmetic number, because the mean of its divisors is an integer number (6006006).

Almost surely, 2^22022011 is an apocalyptic number.

22022011 is a deficient number, since it is larger than the sum of its proper divisors (2002013).

22022011 is a wasteful number, since it uses less digits than its factorization.

22022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002012.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 22022011 is about 4692.7615537123. The cubic root of 22022011 is about 280.2973499296.

Adding to 22022011 its reverse (11022022), we get a palindrome (33044033).

The spelling of 22022011 in words is "twenty-two million, twenty-two thousand, eleven".