10212011200121 has 4 divisors (see below), whose sum is σ = 10311156940032. Its totient is φ = 10112865460212.

The previous prime is 10212011200117. The next prime is 10212011200133. The reversal of 10212011200121 is 12100211021201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10212011200121 - 2² = 10212011200117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212011200096 and 10212011200105.

It is not an unprimeable number, because it can be changed into a prime (10212011200421) 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 3 ways as a sum of consecutive naturals, for example, 49572869801 + ... + 49572870006.

It is an arithmetic number, because the mean of its divisors is an integer number (2577789235008).

Almost surely, 2^{10212011200121} is an apocalyptic number.

It is an amenable number.

10212011200121 is a deficient number, since it is larger than the sum of its proper divisors (99145739911).

10212011200121 is an equidigital number, since it uses as much as digits as its factorization.

10212011200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99145739910.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10212011200121 its reverse (12100211021201), we get a palindrome (22312222221322).

The spelling of 10212011200121 in words is "ten trillion, two hundred twelve billion, eleven million, two hundred thousand, one hundred twenty-one".