22021334 has 4 divisors (see below), whose sum is σ = 33032004. Its totient is φ = 11010666.

The previous prime is 22021331. The next prime is 22021357. The reversal of 22021334 is 43312022.

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

It is a super-2 number, since 2×22021334² = 969878302279112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505332 + ... + 5505335.

It is an arithmetic number, because the mean of its divisors is an integer number (8258001).

Almost surely, 2^22021334 is an apocalyptic number.

22021334 is a deficient number, since it is larger than the sum of its proper divisors (11010670).

22021334 is a wasteful number, since it uses less digits than its factorization.

22021334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010669.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22021334 is about 4692.6894207906. The cubic root of 22021334 is about 280.2944776026.

Adding to 22021334 its reverse (43312022), we get a palindrome (65333356).

The spelling of 22021334 in words is "twenty-two million, twenty-one thousand, three hundred thirty-four".