1210050005121 has 6 divisors (see below), whose sum is σ = 1747850007410. Its totient is φ = 806700003408.

The previous prime is 1210050005117. The next prime is 1210050005179. The reversal of 1210050005121 is 1215000500121.

1210050005121 is a `hidden beast` number, since 1 + 2 + 100 + 50 + 0 + 0 + 512 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1182264782400 + 27785222721 = 1087320^2 + 166689^2 .

It is not a de Polignac number, because 1210050005121 - 2² = 1210050005117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1210050005094 and 1210050005103.

It is not an unprimeable number, because it can be changed into a prime (1210050005321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67225000276 + ... + 67225000293.

Almost surely, 2^{1210050005121} is an apocalyptic number.

It is an amenable number.

1210050005121 is a deficient number, since it is larger than the sum of its proper divisors (537800002289).

1210050005121 is a wasteful number, since it uses less digits than its factorization.

1210050005121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134450000575 (or 134450000572 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 1210050005121 its reverse (1215000500121), we get a palindrome (2425050505242).

It can be divided in two parts, 121005000 and 5121, that added together give a palindrome (121010121).

The spelling of 1210050005121 in words is "one trillion, two hundred ten billion, fifty million, five thousand, one hundred twenty-one".