22201023 has 12 divisors (see below), whose sum is σ = 32054280. Its totient is φ = 13661856.

The previous prime is 22201019. The next prime is 22201033. The reversal of 22201023 is 32010222.

It is not a de Polignac number, because 22201023 - 2² = 22201019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21388 + ... + 22401.

It is an arithmetic number, because the mean of its divisors is an integer number (2671190).

Almost surely, 2^22201023 is an apocalyptic number.

22201023 is a deficient number, since it is larger than the sum of its proper divisors (9853257).

22201023 is a wasteful number, since it uses less digits than its factorization.

22201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43818 (or 43805 counting only the distinct ones).

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

The square root of 22201023 is about 4711.7961543344. The cubic root of 22201023 is about 281.0547927413.

Adding to 22201023 its reverse (32010222), we get a palindrome (54211245).

The spelling of 22201023 in words is "twenty-two million, two hundred one thousand, twenty-three".