121001120101 has 4 divisors (see below), whose sum is σ = 121015154592. Its totient is φ = 120987085612.

The previous prime is 121001120039. The next prime is 121001120111. The reversal of 121001120101 is 101021100121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101021100121 = 2857 ⋅35359153.

It is a cyclic number.

It is not a de Polignac number, because 121001120101 - 2⁷ = 121001119973 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 (121001120111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7004305 + ... + 7021558.

It is an arithmetic number, because the mean of its divisors is an integer number (30253788648).

Almost surely, 2^121001120101 is an apocalyptic number.

It is an amenable number.

121001120101 is a deficient number, since it is larger than the sum of its proper divisors (14034491).

121001120101 is an equidigital number, since it uses as much as digits as its factorization.

121001120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14034490.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121001120101 its reverse (101021100121), we get a palindrome (222022220222).

The spelling of 121001120101 in words is "one hundred twenty-one billion, one million, one hundred twenty thousand, one hundred one".