10100200221 has 6 divisors (see below), whose sum is σ = 14589178110. Its totient is φ = 6733466808.

The previous prime is 10100200217. The next prime is 10100200223. The reversal of 10100200221 is 12200200101.

It can be written as a sum of positive squares in only one way, i.e., 7329756996 + 2770443225 = 85614^2 + 52635^2 .

It is not a de Polignac number, because 10100200221 - 2² = 10100200217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1122244469 = 10100200221 / (1 + 0 + 1 + 0 + 0 + 2 + 0 + 0 + 2 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100200223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 561122226 + ... + 561122243.

It is an arithmetic number, because the mean of its divisors is an integer number (2431529685).

Almost surely, 2^10100200221 is an apocalyptic number.

It is an amenable number.

10100200221 is a deficient number, since it is larger than the sum of its proper divisors (4488977889).

10100200221 is a wasteful number, since it uses less digits than its factorization.

10100200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122244475 (or 1122244472 counting only the distinct ones).

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

Adding to 10100200221 its reverse (12200200101), we get a palindrome (22300400322).

The spelling of 10100200221 in words is "ten billion, one hundred million, two hundred thousand, two hundred twenty-one".