10221100120 has 96 divisors (see below), whose sum is σ = 29184241680. Its totient is φ = 3185790720.

The previous prime is 10221100093. The next prime is 10221100121. The reversal of 10221100120 is 2100112201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10221100097 and 10221100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221100121) 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, 215479 + ... + 258598.

Almost surely, 2^10221100120 is an apocalyptic number.

10221100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221100120 is an abundant number, since it is smaller than the sum of its proper divisors (18963141560).

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

10221100120 is a wasteful number, since it uses less digits than its factorization.

10221100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474113 (or 474102 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10221100120 its reverse (2100112201), we get a palindrome (12321212321).

The spelling of 10221100120 in words is "ten billion, two hundred twenty-one million, one hundred thousand, one hundred twenty".