22001322 has 32 divisors (see below), whose sum is σ = 50429952. Its totient is φ = 6268464.

The previous prime is 22001321. The next prime is 22001327. The reversal of 22001322 is 22310022.

It is a junction number, because it is equal to n+sod(n) for n = 22001298 and 22001307.

It is not an unprimeable number, because it can be changed into a prime (22001321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25063 + ... + 25925.

It is an arithmetic number, because the mean of its divisors is an integer number (1575936).

Almost surely, 2^22001322 is an apocalyptic number.

22001322 is an abundant number, since it is smaller than the sum of its proper divisors (28428630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22001322 is a wasteful number, since it uses less digits than its factorization.

22001322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22001322 is about 4690.5566833799. The cubic root of 22001322 is about 280.2095455228.

Adding to 22001322 its reverse (22310022), we get a palindrome (44311344).

The spelling of 22001322 in words is "twenty-two million, one thousand, three hundred twenty-two".