10002201120020 has 24 divisors (see below), whose sum is σ = 21006466473384. Its totient is φ = 4000529186816.

The previous prime is 10002201120001. The next prime is 10002201120031. The reversal of 10002201120020 is 2002110220001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2293904110096 + 7708297009924 = 1514564^2 + 2776382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10002201119983 and 10002201120010.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 21720269 + ... + 22175988.

It is an arithmetic number, because the mean of its divisors is an integer number (875269436391).

Almost surely, 2^{10002201120020} is an apocalyptic number.

10002201120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002201120020 is an abundant number, since it is smaller than the sum of its proper divisors (11004265353364).

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

10002201120020 is a wasteful number, since it uses less digits than its factorization.

10002201120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43907659 (or 43907657 counting only the distinct ones).

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

Adding to 10002201120020 its reverse (2002110220001), we get a palindrome (12004311340021).

The spelling of 10002201120020 in words is "ten trillion, two billion, two hundred one million, one hundred twenty thousand, twenty".