122121101110001 has 32 divisors (see below), whose sum is σ = 145421120033280. Its totient is φ = 100338168268800.

The previous prime is 122121101109941. The next prime is 122121101110003. The reversal of 122121101110001 is 100011101121221.

It is not a de Polignac number, because 122121101110001 - 2¹⁴ = 122121101093617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122121101110003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25638881 + ... + 30026561.

It is an arithmetic number, because the mean of its divisors is an integer number (4544410001040).

Almost surely, 2^{122121101110001} is an apocalyptic number.

It is an amenable number.

122121101110001 is a deficient number, since it is larger than the sum of its proper divisors (23300018923279).

122121101110001 is a wasteful number, since it uses less digits than its factorization.

122121101110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388705.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 122121101110001 its reverse (100011101121221), we get a palindrome (222132202231222).

The spelling of 122121101110001 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred one million, one hundred ten thousand, one".