100100120202 has 24 divisors (see below), whose sum is σ = 216940503780. Its totient is φ = 33357951360.

The previous prime is 100100120119. The next prime is 100100120203. The reversal of 100100120202 is 202021001001.

It can be written as a sum of positive squares in 2 ways, for example, as 99060638121 + 1039482081 = 314739^2 + 32241^2 .

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

It is not an unprimeable number, because it can be changed into a prime (100100120203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 658927 + ... + 796482.

Almost surely, 2^100100120202 is an apocalyptic number.

100100120202 is an abundant number, since it is smaller than the sum of its proper divisors (116840383578).

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

100100120202 is a wasteful number, since it uses less digits than its factorization.

100100120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459238 (or 1459235 counting only the distinct ones).

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

Adding to 100100120202 its reverse (202021001001), we get a palindrome (302121121203).

It can be divided in two parts, 1001001 and 20202, that multiplied together give a palindrome (20222222202).

The spelling of 100100120202 in words is "one hundred billion, one hundred million, one hundred twenty thousand, two hundred two".