122001012221 has 8 divisors (see below), whose sum is σ = 133781611584. Its totient is φ = 110335345920.

The previous prime is 122001012149. The next prime is 122001012229. The reversal of 122001012221 is 122210100221.

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-122001012221 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 = 122001012196 and 122001012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001012229) 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, 28731041 + ... + 28735286.

It is an arithmetic number, because the mean of its divisors is an integer number (16722701448).

Almost surely, 2^122001012221 is an apocalyptic number.

122001012221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122001012221 is a deficient number, since it is larger than the sum of its proper divisors (11780599363).

122001012221 is a wasteful number, since it uses less digits than its factorization.

122001012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57466531.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122001012221 its reverse (122210100221), we get a palindrome (244211112442).

The spelling of 122001012221 in words is "one hundred twenty-two billion, one million, twelve thousand, two hundred twenty-one".