122121012101 has 4 divisors (see below), whose sum is σ = 133222922304. Its totient is φ = 111019101900.

The previous prime is 122121012023. The next prime is 122121012103. The reversal of 122121012101 is 101210121221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122121012101 - 2³⁰ = 121047270277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121012103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550955085 + ... + 5550955106.

It is an arithmetic number, because the mean of its divisors is an integer number (33305730576).

Almost surely, 2^122121012101 is an apocalyptic number.

122121012101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122121012101 is a deficient number, since it is larger than the sum of its proper divisors (11101910203).

122121012101 is a wasteful number, since it uses less digits than its factorization.

122121012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101910202.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122121012101 its reverse (101210121221), we get a palindrome (223331133322).

The spelling of 122121012101 in words is "one hundred twenty-two billion, one hundred twenty-one million, twelve thousand, one hundred one".