10221202222001 has 4 divisors (see below), whose sum is σ = 10221208694004. Its totient is φ = 10221195750000.

The previous prime is 10221202221973. The next prime is 10221202222039. The reversal of 10221202222001 is 10022220212201.

It is a happy number.

10221202222001 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 23654132401 + 10197548089600 = 153799^2 + 3193360^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221202222001 - 2²² = 10221198027697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221202228001) 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, 867251 + ... + 4603751.

It is an arithmetic number, because the mean of its divisors is an integer number (2555302173501).

Almost surely, 2^{10221202222001} is an apocalyptic number.

It is an amenable number.

10221202222001 is a deficient number, since it is larger than the sum of its proper divisors (6472003).

10221202222001 is an equidigital number, since it uses as much as digits as its factorization.

10221202222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472002.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10221202222001 its reverse (10022220212201), we get a palindrome (20243422434202).

The spelling of 10221202222001 in words is "ten trillion, two hundred twenty-one billion, two hundred two million, two hundred twenty-two thousand, one".