22321006 has 4 divisors (see below), whose sum is σ = 33481512. Its totient is φ = 11160502.

The previous prime is 22320967. The next prime is 22321007. The reversal of 22321006 is 60012322.

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

It is a super-3 number, since 3×22321006³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580250 + ... + 5580253.

It is an arithmetic number, because the mean of its divisors is an integer number (8370378).

Almost surely, 2^22321006 is an apocalyptic number.

22321006 is a deficient number, since it is larger than the sum of its proper divisors (11160506).

22321006 is a wasteful number, since it uses less digits than its factorization.

22321006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160505.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 22321006 is about 4724.5111916472. The cubic root of 22321006 is about 281.5601933310.

Adding to 22321006 its reverse (60012322), we get a palindrome (82333328).

The spelling of 22321006 in words is "twenty-two million, three hundred twenty-one thousand, six".