10221222112100 has 144 divisors (see below), whose sum is σ = 23233531708800. Its totient is φ = 3898082872320.

The previous prime is 10221222112081. The next prime is 10221222112103. The reversal of 10221222112100 is 121122212201.

It is not an unprimeable number, because it can be changed into a prime (10221222112103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97071281 + ... + 97176519.

It is an arithmetic number, because the mean of its divisors is an integer number (161343970200).

Almost surely, 2^{10221222112100} is an apocalyptic number.

10221222112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10221222112100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11616765854400).

10221222112100 is an abundant number, since it is smaller than the sum of its proper divisors (13012309596700).

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

10221222112100 is a wasteful number, since it uses less digits than its factorization.

10221222112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105702 (or 105695 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10221222112100 its reverse (121122212201), we get a palindrome (10342344324301).

The spelling of 10221222112100 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, one hundred".