100100002201220 has 36 divisors (see below), whose sum is σ = 244530005379660. Its totient is φ = 34320000754368.

The previous prime is 100100002201193. The next prime is 100100002201247. The reversal of 100100002201220 is 22102200001001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100100002201193) and next prime (100100002201247).

It can be written as a sum of positive squares in 2 ways, for example, as 66440789858884 + 33659212342336 = 8151122^2 + 5801656^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51071428715 + ... + 51071430674.

It is an arithmetic number, because the mean of its divisors is an integer number (6792500149435).

Almost surely, 2^{100100002201220} is an apocalyptic number.

100100002201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100100002201220 is an abundant number, since it is smaller than the sum of its proper divisors (144430003178440).

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

100100002201220 is a wasteful number, since it uses less digits than its factorization.

100100002201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102142859412 (or 102142859403 counting only the distinct ones).

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

Adding to 100100002201220 its reverse (22102200001001), we get a palindrome (122202202202221).

The spelling of 100100002201220 in words is "one hundred trillion, one hundred billion, two million, two hundred one thousand, two hundred twenty".