10221221102120 has 64 divisors (see below), whose sum is σ = 26298907908480. Its totient is φ = 3502316272896.

The previous prime is 10221221102083. The next prime is 10221221102137. The reversal of 10221221102120 is 2120112212201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10482359 + ... + 11415878.

It is an arithmetic number, because the mean of its divisors is an integer number (410920436070).

Almost surely, 2^{10221221102120} is an apocalyptic number.

10221221102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221221102120 is an abundant number, since it is smaller than the sum of its proper divisors (16077686806360).

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

10221221102120 is a wasteful number, since it uses less digits than its factorization.

10221221102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21899922 (or 21899918 counting only the distinct ones).

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

Adding to 10221221102120 its reverse (2120112212201), we get a palindrome (12341333314321).

The spelling of 10221221102120 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty".