122011221222001 has 16 divisors (see below), whose sum is σ = 126409327976448. Its totient is φ = 117642363321600.

The previous prime is 122011221221881. The next prime is 122011221222031. The reversal of 122011221222001 is 100222122110221.

It is a cyclic number.

It is not a de Polignac number, because 122011221222001 - 2⁷ = 122011221221873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122011221222001.

It is not an unprimeable number, because it can be changed into a prime (122011221222031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17504685 + ... + 23461381.

It is an arithmetic number, because the mean of its divisors is an integer number (7900582998528).

Almost surely, 2^{122011221222001} is an apocalyptic number.

It is an amenable number.

122011221222001 is a deficient number, since it is larger than the sum of its proper divisors (4398106754447).

122011221222001 is a wasteful number, since it uses less digits than its factorization.

122011221222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5959152.

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

Adding to 122011221222001 its reverse (100222122110221), we get a palindrome (222233343332222).

The spelling of 122011221222001 in words is "one hundred twenty-two trillion, eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, one".