10221200200121 has 4 divisors (see below), whose sum is σ = 10223258026752. Its totient is φ = 10219142373492.

The previous prime is 10221200200117. The next prime is 10221200200153. The reversal of 10221200200121 is 12100200212201.

10221200200121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10221200200121 - 2² = 10221200200117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221200200096 and 10221200200105.

It is not an unprimeable number, because it can be changed into a prime (10221200200171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028905865 + ... + 1028915798.

It is an arithmetic number, because the mean of its divisors is an integer number (2555814506688).

Almost surely, 2^{10221200200121} is an apocalyptic number.

It is an amenable number.

10221200200121 is a deficient number, since it is larger than the sum of its proper divisors (2057826631).

10221200200121 is an equidigital number, since it uses as much as digits as its factorization.

10221200200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057826630.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10221200200121 its reverse (12100200212201), we get a palindrome (22321400412322).

The spelling of 10221200200121 in words is "ten trillion, two hundred twenty-one billion, two hundred million, two hundred thousand, one hundred twenty-one".