10221000021201 has 4 divisors (see below), whose sum is σ = 13628000028272. Its totient is φ = 6814000014132.

The previous prime is 10221000021143. The next prime is 10221000021251. The reversal of 10221000021201 is 10212000012201.

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 de Polignac number, because none of the positive numbers 2^k-10221000021201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10221000021251) 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, 1703500003531 + ... + 1703500003536.

It is an arithmetic number, because the mean of its divisors is an integer number (3407000007068).

Almost surely, 2^{10221000021201} is an apocalyptic number.

It is an amenable number.

10221000021201 is a deficient number, since it is larger than the sum of its proper divisors (3407000007071).

10221000021201 is an equidigital number, since it uses as much as digits as its factorization.

10221000021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407000007070.

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

Adding to 10221000021201 its reverse (10212000012201), we get a palindrome (20433000033402).

The spelling of 10221000021201 in words is "ten trillion, two hundred twenty-one billion, twenty-one thousand, two hundred one".