121012141210121 has 32 divisors (see below), whose sum is σ = 144387920701440. Its totient is φ = 99235071936000.

The previous prime is 121012141210117. The next prime is 121012141210141.

121012141210121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121012141210121 - 2² = 121012141210117 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121012141210093 and 121012141210102.

It is not an unprimeable number, because it can be changed into a prime (121012141210141) 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 31 ways as a sum of consecutive naturals, for example, 121504271 + ... + 122496171.

It is an arithmetic number, because the mean of its divisors is an integer number (4512122521920).

Almost surely, 2^{121012141210121} is an apocalyptic number.

It is an amenable number.

121012141210121 is a deficient number, since it is larger than the sum of its proper divisors (23375779491319).

121012141210121 is an equidigital number, since it uses as much as digits as its factorization.

121012141210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998345.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 121012141210121 in words is "one hundred twenty-one trillion, twelve billion, one hundred forty-one million, two hundred ten thousand, one hundred twenty-one".