22201002 has 24 divisors (see below), whose sum is σ = 48555936. Its totient is φ = 7330536.

The previous prime is 22201001. The next prime is 22201019. The reversal of 22201002 is 20010222.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3838 + ... + 7689.

It is an arithmetic number, because the mean of its divisors is an integer number (2023164).

Almost surely, 2^22201002 is an apocalyptic number.

22201002 is an abundant number, since it is smaller than the sum of its proper divisors (26354934).

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

22201002 is a wasteful number, since it uses less digits than its factorization.

22201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11642 (or 11639 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 22201002 is about 4711.7939258843. The cubic root of 22201002 is about 281.0547041245.

Adding to 22201002 its reverse (20010222), we get a palindrome (42211224).

The spelling of 22201002 in words is "twenty-two million, two hundred one thousand, two".