22212220120221 has 8 divisors (see below), whose sum is σ = 29625465477280. Its totient is φ = 14803560754992.

The previous prime is 22212220120219. The next prime is 22212220120229. The reversal of 22212220120221 is 12202102221222.

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

It is not a de Polignac number, because 22212220120221 - 2¹ = 22212220120219 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 (22212220120229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146486655 + ... + 1146506028.

It is an arithmetic number, because the mean of its divisors is an integer number (3703183184660).

Almost surely, 2^{22212220120221} is an apocalyptic number.

It is an amenable number.

22212220120221 is a deficient number, since it is larger than the sum of its proper divisors (7413245357059).

22212220120221 is a wasteful number, since it uses less digits than its factorization.

22212220120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292995915.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22212220120221 its reverse (12202102221222), we get a palindrome (34414322341443).

The spelling of 22212220120221 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty million, one hundred twenty thousand, two hundred twenty-one".