10100020021220 has 24 divisors (see below), whose sum is σ = 21703298838144. Its totient is φ = 3946054333536.

The previous prime is 10100020021213. The next prime is 10100020021237. The reversal of 10100020021220 is 2212002000101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5872103804 + ... + 5872105523.

It is an arithmetic number, because the mean of its divisors is an integer number (904304118256).

Almost surely, 2^{10100020021220} is an apocalyptic number.

10100020021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100020021220 is an abundant number, since it is smaller than the sum of its proper divisors (11603278816924).

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

10100020021220 is a wasteful number, since it uses less digits than its factorization.

10100020021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11744209379 (or 11744209377 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10100020021220 its reverse (2212002000101), we get a palindrome (12312022021321).

The spelling of 10100020021220 in words is "ten trillion, one hundred billion, twenty million, twenty-one thousand, two hundred twenty".