122001212022221 has 8 divisors (see below), whose sum is σ = 141793176200640. Its totient is φ = 102800052744768.

The previous prime is 122001212022191. The next prime is 122001212022223. The reversal of 122001212022221 is 122220212100221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122001212022221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122001212022193 and 122001212022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001212022223) 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, 147701224796 + ... + 147701225621.

It is an arithmetic number, because the mean of its divisors is an integer number (17724147025080).

Almost surely, 2^{122001212022221} is an apocalyptic number.

It is an amenable number.

122001212022221 is a deficient number, since it is larger than the sum of its proper divisors (19791964178419).

122001212022221 is an equidigital number, since it uses as much as digits as its factorization.

122001212022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295402450483.

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

Adding to 122001212022221 its reverse (122220212100221), we get a palindrome (244221424122442).

The spelling of 122001212022221 in words is "one hundred twenty-two trillion, one billion, two hundred twelve million, twenty-two thousand, two hundred twenty-one".