100121222110 has 128 divisors (see below), whose sum is σ = 226085529600. Its totient is φ = 31078494720.

The previous prime is 100121222093. The next prime is 100121222141. The reversal of 100121222110 is 11222121001.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21035911 + ... + 21040669.

It is an arithmetic number, because the mean of its divisors is an integer number (1766293200).

Almost surely, 2^100121222110 is an apocalyptic number.

100121222110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121222110 is an abundant number, since it is smaller than the sum of its proper divisors (125964307490).

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

100121222110 is a wasteful number, since it uses less digits than its factorization.

100121222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5226.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100121222110 its reverse (11222121001), we get a palindrome (111343343111).

The spelling of 100121222110 in words is "one hundred billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred ten".