22120220220221 has 8 divisors (see below), whose sum is σ = 23084254737600. Its totient is φ = 21156376187232.

The previous prime is 22120220220199. The next prime is 22120220220347. The reversal of 22120220220221 is 12202202202122.

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 22120220220221 - 2³⁰ = 22119146478397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120220220193 and 22120220220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120225220221) 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, 47383760 + ... + 47848313.

It is an arithmetic number, because the mean of its divisors is an integer number (2885531842200).

Almost surely, 2^{22120220220221} is an apocalyptic number.

It is an amenable number.

22120220220221 is a deficient number, since it is larger than the sum of its proper divisors (964034517379).

22120220220221 is a wasteful number, since it uses less digits than its factorization.

22120220220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95242195.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22120220220221 its reverse (12202202202122), we get a palindrome (34322422422343).

The spelling of 22120220220221 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty-one".