10121010220 has 48 divisors (see below), whose sum is σ = 21487834368. Its totient is φ = 4004095680.

The previous prime is 10121010217. The next prime is 10121010239. The reversal of 10121010220 is 2201012101.

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 = 10121010197 and 10121010206.

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, 798049 + ... + 810631.

It is an arithmetic number, because the mean of its divisors is an integer number (447663216).

Almost surely, 2^10121010220 is an apocalyptic number.

10121010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121010220 is an abundant number, since it is smaller than the sum of its proper divisors (11366824148).

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

10121010220 is a wasteful number, since it uses less digits than its factorization.

10121010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13030 (or 13028 counting only the distinct ones).

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

Adding to 10121010220 its reverse (2201012101), we get a palindrome (12322022321).

The spelling of 10121010220 in words is "ten billion, one hundred twenty-one million, ten thousand, two hundred twenty".