1210200020121 has 8 divisors (see below), whose sum is σ = 1613605663264. Its totient is φ = 806797195200.

The previous prime is 1210200020053. The next prime is 1210200020123.

1210200020121 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1210200020121 - 2¹⁷ = 1210199889049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210200020097 and 1210200020106.

It is not an unprimeable number, because it can be changed into a prime (1210200020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694050 + ... + 1703556.

It is an arithmetic number, because the mean of its divisors is an integer number (201700707908).

Almost surely, 2^{1210200020121} is an apocalyptic number.

It is an amenable number.

1210200020121 is a deficient number, since it is larger than the sum of its proper divisors (403405643143).

1210200020121 is a wasteful number, since it uses less digits than its factorization.

1210200020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409111.

The product of its (nonzero) digits is 16, while the sum is 12.

It can be divided in two parts, 12102000 and 20121, that added together give a palindrome (12122121).

The spelling of 1210200020121 in words is "one trillion, two hundred ten billion, two hundred million, twenty thousand, one hundred twenty-one".