10221221220201 has 24 divisors (see below), whose sum is σ = 14910638109120. Its totient is φ = 6746466276000.

The previous prime is 10221221220187. The next prime is 10221221220227. The reversal of 10221221220201 is 10202212212201.

It is a happy number.

10221221220201 is a `hidden beast` number, since 1 + 0 + 2 + 21 + 221 + 220 + 201 = 666.

It is not a de Polignac number, because 10221221220201 - 2⁶ = 10221221220137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10221221220601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31536510 + ... + 31858968.

It is an arithmetic number, because the mean of its divisors is an integer number (621276587880).

Almost surely, 2^{10221221220201} is an apocalyptic number.

It is an amenable number.

10221221220201 is a deficient number, since it is larger than the sum of its proper divisors (4689416888919).

10221221220201 is a wasteful number, since it uses less digits than its factorization.

10221221220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357437 (or 357434 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10221221220201 its reverse (10202212212201), we get a palindrome (20423433432402).

The spelling of 10221221220201 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty thousand, two hundred one".