122121012002101 has 4 divisors (see below), whose sum is σ = 139566870859552. Its totient is φ = 104675153144652.

The previous prime is 122121012002057. The next prime is 122121012002123. The reversal of 122121012002101 is 101200210121221.

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 122121012002101 - 2⁴³ = 113324918979893 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 (122121012002501) 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 3 ways as a sum of consecutive naturals, for example, 8722929428715 + ... + 8722929428728.

It is an arithmetic number, because the mean of its divisors is an integer number (34891717714888).

Almost surely, 2^{122121012002101} is an apocalyptic number.

It is an amenable number.

122121012002101 is a deficient number, since it is larger than the sum of its proper divisors (17445858857451).

122121012002101 is an equidigital number, since it uses as much as digits as its factorization.

122121012002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17445858857450.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122121012002101 its reverse (101200210121221), we get a palindrome (223321222123322).

The spelling of 122121012002101 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, twelve million, two thousand, one hundred one".