10021000100220 has 72 divisors (see below), whose sum is σ = 31522849713264. Its totient is φ = 2672266692096.

The previous prime is 10021000100203. The next prime is 10021000100263. The reversal of 10021000100220 is 2200100012001.

10021000100220 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 (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030962229 + ... + 1030971948.

Almost surely, 2^{10021000100220} is an apocalyptic number.

10021000100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021000100220 is an abundant number, since it is smaller than the sum of its proper divisors (21501849613044).

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

10021000100220 is a wasteful number, since it uses less digits than its factorization.

10021000100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061934201 (or 2061934187 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10021000100220 its reverse (2200100012001), we get a palindrome (12221100112221).

The spelling of 10021000100220 in words is "ten trillion, twenty-one billion, one hundred thousand, two hundred twenty".