100111220202 has 64 divisors (see below), whose sum is σ = 243060597504. Its totient is φ = 26834595840.

The previous prime is 100111220177. The next prime is 100111220213. The reversal of 100111220202 is 202022111001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499 + ... + 447462.

It is an arithmetic number, because the mean of its divisors is an integer number (3797821836).

Almost surely, 2^100111220202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100111220202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121530298752).

100111220202 is an abundant number, since it is smaller than the sum of its proper divisors (142949377302).

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

100111220202 is a wasteful number, since it uses less digits than its factorization.

100111220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448303.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100111220202 its reverse (202022111001), we get a palindrome (302133331203).

The spelling of 100111220202 in words is "one hundred billion, one hundred eleven million, two hundred twenty thousand, two hundred two".