122121100011 has 8 divisors (see below), whose sum is σ = 164889249280. Its totient is φ = 80383508712.

The previous prime is 122121099979. The next prime is 122121100021. The reversal of 122121100011 is 110001121221.

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

It is not a de Polignac number, because 122121100011 - 2⁵ = 122121099979 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 122121100011.

It is not an unprimeable number, because it can be changed into a prime (122121100021) 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, 257639215 + ... + 257639688.

It is an arithmetic number, because the mean of its divisors is an integer number (20611156160).

Almost surely, 2^122121100011 is an apocalyptic number.

122121100011 is a deficient number, since it is larger than the sum of its proper divisors (42768149269).

122121100011 is an equidigital number, since it uses as much as digits as its factorization.

122121100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515278985.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 122121100011 its reverse (110001121221), we get a palindrome (232122221232).

The spelling of 122121100011 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, eleven".