10121210220 has 96 divisors (see below), whose sum is σ = 30933342720. Its totient is φ = 2452226560.

The previous prime is 10121210201. The next prime is 10121210233. The reversal of 10121210220 is 2201212101.

10121210220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10121210196 and 10121210205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1596016 + ... + 1602344.

It is an arithmetic number, because the mean of its divisors is an integer number (322222320).

Almost surely, 2^10121210220 is an apocalyptic number.

10121210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121210220 is an abundant number, since it is smaller than the sum of its proper divisors (20812132500).

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

10121210220 is a wasteful number, since it uses less digits than its factorization.

10121210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8775 (or 8773 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10121210220 its reverse (2201212101), we get a palindrome (12322422321).

The spelling of 10121210220 in words is "ten billion, one hundred twenty-one million, two hundred ten thousand, two hundred twenty".