100020101228 has 12 divisors (see below), whose sum is σ = 175251009192. Its totient is φ = 49948384320.

The previous prime is 100020101221. The next prime is 100020101231. The reversal of 100020101228 is 822101020001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100020101221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15412925 + ... + 15419412.

It is an arithmetic number, because the mean of its divisors is an integer number (14604250766).

Almost surely, 2^100020101228 is an apocalyptic number.

It is an amenable number.

100020101228 is a deficient number, since it is larger than the sum of its proper divisors (75230907964).

100020101228 is a wasteful number, since it uses less digits than its factorization.

100020101228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30833152 (or 30833150 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100020101228 its reverse (822101020001), we get a palindrome (922121121229).

The spelling of 100020101228 in words is "one hundred billion, twenty million, one hundred one thousand, two hundred twenty-eight".