10210120021220 has 48 divisors (see below), whose sum is σ = 25349263511040. Its totient is φ = 3379901798784.

The previous prime is 10210120021219. The next prime is 10210120021229. The reversal of 10210120021220 is 2212002101201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10210120021195 and 10210120021204.

It is not an unprimeable number, because it can be changed into a prime (10210120021229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257399884 + ... + 1257408003.

It is an arithmetic number, because the mean of its divisors is an integer number (528109656480).

Almost surely, 2^{10210120021220} is an apocalyptic number.

10210120021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10210120021220 is an abundant number, since it is smaller than the sum of its proper divisors (15139143489820).

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

10210120021220 is a wasteful number, since it uses less digits than its factorization.

10210120021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514807932 (or 2514807930 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10210120021220 its reverse (2212002101201), we get a palindrome (12422122122421).

The spelling of 10210120021220 in words is "ten trillion, two hundred ten billion, one hundred twenty million, twenty-one thousand, two hundred twenty".