100010020221 has 32 divisors (see below), whose sum is σ = 150866795520. Its totient is φ = 65464837632.

The previous prime is 100010020213. The next prime is 100010020241. The reversal of 100010020221 is 122020010001.

It is not a de Polignac number, because 100010020221 - 2³ = 100010020213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100010020241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325765 + ... + 553301.

It is an arithmetic number, because the mean of its divisors is an integer number (4714587360).

Almost surely, 2^100010020221 is an apocalyptic number.

It is an amenable number.

100010020221 is a deficient number, since it is larger than the sum of its proper divisors (50856775299).

100010020221 is a wasteful number, since it uses less digits than its factorization.

100010020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227842 (or 227836 counting only the distinct ones).

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

Adding to 100010020221 its reverse (122020010001), we get a palindrome (222030030222).

The spelling of 100010020221 in words is "one hundred billion, ten million, twenty thousand, two hundred twenty-one".