122212220020221 has 8 divisors (see below), whose sum is σ = 165181813360960. Its totient is φ = 80358720013152.

The previous prime is 122212220020217. The next prime is 122212220020223. The reversal of 122212220020221 is 122020022212221.

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

It is not a de Polignac number, because 122212220020221 - 2² = 122212220020217 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 (122212220020223) 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, 279023333161 + ... + 279023333598.

It is an arithmetic number, because the mean of its divisors is an integer number (20647726670120).

Almost surely, 2^{122212220020221} is an apocalyptic number.

It is an amenable number.

122212220020221 is a deficient number, since it is larger than the sum of its proper divisors (42969593340739).

122212220020221 is an equidigital number, since it uses as much as digits as its factorization.

122212220020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558046666835.

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

Adding to 122212220020221 its reverse (122020022212221), we get a palindrome (244232242232442).

The spelling of 122212220020221 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred twenty million, twenty thousand, two hundred twenty-one".