22331001 has 16 divisors (see below), whose sum is σ = 37122048. Its totient is φ = 11600400.

The previous prime is 22330993. The next prime is 22331003. The reversal of 22331001 is 10013322.

It is a happy number.

It is not a de Polignac number, because 22331001 - 2³ = 22330993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22331003) 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, 48105 + ... + 48566.

It is an arithmetic number, because the mean of its divisors is an integer number (2320128).

Almost surely, 2^22331001 is an apocalyptic number.

22331001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22331001 is a deficient number, since it is larger than the sum of its proper divisors (14791047).

22331001 is a wasteful number, since it uses less digits than its factorization.

22331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96692.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 22331001 is about 4725.5688546460. The cubic root of 22331001 is about 281.6022131544.

Adding to 22331001 its reverse (10013322), we get a palindrome (32344323).

The spelling of 22331001 in words is "twenty-two million, three hundred thirty-one thousand, one".