122112001022221 has 8 divisors (see below), whose sum is σ = 139667419765440. Its totient is φ = 104584294071168.

The previous prime is 122112001022189. The next prime is 122112001022251. The reversal of 122112001022221 is 122220100211221.

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 122112001022221 - 2⁵ = 122112001022189 is a prime.

It is a super-2 number, since 2×122112001022221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112001022251) 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, 6927938596 + ... + 6927956221.

It is an arithmetic number, because the mean of its divisors is an integer number (17458427470680).

Almost surely, 2^{122112001022221} is an apocalyptic number.

It is an amenable number.

122112001022221 is a deficient number, since it is larger than the sum of its proper divisors (17555418743219).

122112001022221 is a wasteful number, since it uses less digits than its factorization.

122112001022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13855896083.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122112001022221 its reverse (122220100211221), we get a palindrome (244332101233442).

The spelling of 122112001022221 in words is "one hundred twenty-two trillion, one hundred twelve billion, one million, twenty-two thousand, two hundred twenty-one".