100122201020 has 24 divisors (see below), whose sum is σ = 217039095168. Its totient is φ = 38756980800.

The previous prime is 100122201019. The next prime is 100122201037. The reversal of 100122201020 is 20102221001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100122200992 and 100122201010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80743091 + ... + 80744330.

It is an arithmetic number, because the mean of its divisors is an integer number (9043295632).

Almost surely, 2^100122201020 is an apocalyptic number.

100122201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100122201020 is an abundant number, since it is smaller than the sum of its proper divisors (116916894148).

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

100122201020 is a wasteful number, since it uses less digits than its factorization.

100122201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161487461 (or 161487459 counting only the distinct ones).

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

Adding to 100122201020 its reverse (20102221001), we get a palindrome (120224422021).

The spelling of 100122201020 in words is "one hundred billion, one hundred twenty-two million, two hundred one thousand, twenty".