10221201210222 has 80 divisors (see below), whose sum is σ = 23070214268640. Its totient is φ = 3382254600192.

The previous prime is 10221201210179. The next prime is 10221201210223. The reversal of 10221201210222 is 22201210212201.

It is a happy number.

10221201210222 is a `hidden beast` number, since 1 + 0 + 221 + 201 + 21 + 0 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10221201210195 and 10221201210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221201210223) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20558878 + ... + 21050174.

It is an arithmetic number, because the mean of its divisors is an integer number (288377678358).

Almost surely, 2^{10221201210222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10221201210222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11535107134320).

10221201210222 is an abundant number, since it is smaller than the sum of its proper divisors (12849013058418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221201210222 is a wasteful number, since it uses less digits than its factorization.

10221201210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492247 (or 492238 counting only the distinct ones).

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

Adding to 10221201210222 its reverse (22201210212201), we get a palindrome (32422411422423).

The spelling of 10221201210222 in words is "ten trillion, two hundred twenty-one billion, two hundred one million, two hundred ten thousand, two hundred twenty-two".