22261362221 has 8 divisors (see below), whose sum is σ = 25444869120. Its totient is φ = 19078683408.

The previous prime is 22261362203. The next prime is 22261362241. The reversal of 22261362221 is 12226316222.

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

It is a cyclic number.

It is not a de Polignac number, because 22261362221 - 2¹⁰ = 22261361197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22261362241) 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 7 ways as a sum of consecutive naturals, for example, 148301 + ... + 257906.

It is an arithmetic number, because the mean of its divisors is an integer number (3180608640).

Almost surely, 2^22261362221 is an apocalyptic number.

It is an amenable number.

22261362221 is a deficient number, since it is larger than the sum of its proper divisors (3183506899).

22261362221 is an equidigital number, since it uses as much as digits as its factorization.

22261362221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414043.

The product of its digits is 6912, while the sum is 29.

Adding to 22261362221 its reverse (12226316222), we get a palindrome (34487678443).

The spelling of 22261362221 in words is "twenty-two billion, two hundred sixty-one million, three hundred sixty-two thousand, two hundred twenty-one".