121222110001 has 8 divisors (see below), whose sum is σ = 128356704864. Its totient is φ = 114087946560.

The previous prime is 121222109999. The next prime is 121222110013. The reversal of 121222110001 is 100011222121.

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

It is not a de Polignac number, because 121222110001 - 2¹ = 121222109999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121222110701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605506 + ... + 780436.

It is an arithmetic number, because the mean of its divisors is an integer number (16044588108).

Almost surely, 2^121222110001 is an apocalyptic number.

It is an amenable number.

121222110001 is a deficient number, since it is larger than the sum of its proper divisors (7134594863).

121222110001 is a wasteful number, since it uses less digits than its factorization.

121222110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215711.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121222110001 its reverse (100011222121), we get a palindrome (221233332122).

The spelling of 121222110001 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred ten thousand, one".