121011110022121 has 16 divisors (see below), whose sum is σ = 132981334859520. Its totient is φ = 109202652985680.

The previous prime is 121011110022119. The next prime is 121011110022149. The reversal of 121011110022121 is 121220011110121.

It is a cyclic number.

It is not a de Polignac number, because 121011110022121 - 2¹ = 121011110022119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121011110022095 and 121011110022104.

It is not an unprimeable number, because it can be changed into a prime (121011110022221) 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 15 ways as a sum of consecutive naturals, for example, 4642090 + ... + 16234876.

It is an arithmetic number, because the mean of its divisors is an integer number (8311333428720).

Almost surely, 2^{121011110022121} is an apocalyptic number.

121011110022121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121011110022121 is a deficient number, since it is larger than the sum of its proper divisors (11970224837399).

121011110022121 is a wasteful number, since it uses less digits than its factorization.

121011110022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11599764.

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

Adding to 121011110022121 its reverse (121220011110121), we get a palindrome (242231121132242).

The spelling of 121011110022121 in words is "one hundred twenty-one trillion, eleven billion, one hundred ten million, twenty-two thousand, one hundred twenty-one".