1210124210121 has 12 divisors (see below), whose sum is σ = 1795199279172. Its totient is φ = 784945433376.

The previous prime is 1210124210101. The next prime is 1210124210129.

1210124210121 is a `hidden beast` number, since 1 + 210 + 12 + 421 + 0 + 1 + 21 = 666.

1210124210121 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 885866852025 + 324257358096 = 941205^2 + 569436^2 .

It is not a de Polignac number, because 1210124210121 - 2²⁵ = 1210090655689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210124210094 and 1210124210103.

It is not an unprimeable number, because it can be changed into a prime (1210124210129) 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 11 ways as a sum of consecutive naturals, for example, 1817002986 + ... + 1817003651.

It is an arithmetic number, because the mean of its divisors is an integer number (149599939931).

Almost surely, 2^{1210124210121} is an apocalyptic number.

It is an amenable number.

1210124210121 is a deficient number, since it is larger than the sum of its proper divisors (585075069051).

1210124210121 is a wasteful number, since it uses less digits than its factorization.

1210124210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634006680 (or 3634006677 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The spelling of 1210124210121 in words is "one trillion, two hundred ten billion, one hundred twenty-four million, two hundred ten thousand, one hundred twenty-one".