10000201022121 has 4 divisors (see below), whose sum is σ = 13333601362832. Its totient is φ = 6666800681412.

The previous prime is 10000201022117. The next prime is 10000201022129. The reversal of 10000201022121 is 12122010200001.

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 not a de Polignac number, because 10000201022121 - 2² = 10000201022117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000201022097 and 10000201022106.

It is not an unprimeable number, because it can be changed into a prime (10000201022129) 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, 1666700170351 + ... + 1666700170356.

It is an arithmetic number, because the mean of its divisors is an integer number (3333400340708).

Almost surely, 2^{10000201022121} is an apocalyptic number.

It is an amenable number.

10000201022121 is a deficient number, since it is larger than the sum of its proper divisors (3333400340711).

10000201022121 is an equidigital number, since it uses as much as digits as its factorization.

10000201022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333400340710.

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

Adding to 10000201022121 its reverse (12122010200001), we get a palindrome (22122211222122).

The spelling of 10000201022121 in words is "ten trillion, two hundred one million, twenty-two thousand, one hundred twenty-one".