122121121101 has 8 divisors (see below), whose sum is σ = 186089327424. Its totient is φ = 69783497760.

The previous prime is 122121121099. The next prime is 122121121121. The reversal of 122121121101 is 101121121221.

It is a happy number.

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

It is not a de Polignac number, because 122121121101 - 2¹ = 122121121099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2907645720 + ... + 2907645761.

It is an arithmetic number, because the mean of its divisors is an integer number (23261165928).

Almost surely, 2^122121121101 is an apocalyptic number.

It is an amenable number.

122121121101 is a deficient number, since it is larger than the sum of its proper divisors (63968206323).

122121121101 is an equidigital number, since it uses as much as digits as its factorization.

122121121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815291491.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122121121101 its reverse (101121121221), we get a palindrome (223242242322).

The spelling of 122121121101 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred one".