20122201212221 has 8 divisors (see below), whose sum is σ = 20124800427264. Its totient is φ = 20119602182400.

The previous prime is 20122201212203. The next prime is 20122201212293. The reversal of 20122201212221 is 12221210222102.

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 20122201212221 - 2¹⁰ = 20122201211197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122201212193 and 20122201212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122201211221) 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, 463015325 + ... + 463058781.

It is an arithmetic number, because the mean of its divisors is an integer number (2515600053408).

Almost surely, 2^{20122201212221} is an apocalyptic number.

It is an amenable number.

20122201212221 is a deficient number, since it is larger than the sum of its proper divisors (2599215043).

20122201212221 is a wasteful number, since it uses less digits than its factorization.

20122201212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92611.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20122201212221 its reverse (12221210222102), we get a palindrome (32343411434323).

The spelling of 20122201212221 in words is "twenty trillion, one hundred twenty-two billion, two hundred one million, two hundred twelve thousand, two hundred twenty-one".