10221210120120 has 32 divisors (see below), whose sum is σ = 30663630360720. Its totient is φ = 2725656032000.

The previous prime is 10221210120113. The next prime is 10221210120217. The reversal of 10221210120120 is 2102101212201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10221210120120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42588375381 + ... + 42588375620.

Almost surely, 2^{10221210120120} is an apocalyptic number.

10221210120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221210120120 is an abundant number, since it is smaller than the sum of its proper divisors (20442420240600).

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

10221210120120 is a wasteful number, since it uses less digits than its factorization.

10221210120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85176751015 (or 85176751011 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10221210120120 its reverse (2102101212201), we get a palindrome (12323311332321).

The spelling of 10221210120120 in words is "ten trillion, two hundred twenty-one billion, two hundred ten million, one hundred twenty thousand, one hundred twenty".