22201220002 has 8 divisors (see below), whose sum is σ = 35863509276. Its totient is φ = 10246716912.

The previous prime is 22201219993. The next prime is 22201220003. The reversal of 22201220002 is 20002210222.

It can be written as a sum of positive squares in 2 ways, for example, as 22189379521 + 11840481 = 148961^2 + 3441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (22201220003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426946513 + ... + 426946564.

Almost surely, 2^22201220002 is an apocalyptic number.

22201220002 is a deficient number, since it is larger than the sum of its proper divisors (13662289274).

22201220002 is a wasteful number, since it uses less digits than its factorization.

22201220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853893092.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22201220002 its reverse (20002210222), we get a palindrome (42203430224).

The spelling of 22201220002 in words is "twenty-two billion, two hundred one million, two hundred twenty thousand, two".