100202111220 has 24 divisors (see below), whose sum is σ = 280565911584. Its totient is φ = 26720562976.

The previous prime is 100202111173. The next prime is 100202111231. The reversal of 100202111220 is 22111202001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100202111196 and 100202111205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835017534 + ... + 835017653.

It is an arithmetic number, because the mean of its divisors is an integer number (11690246316).

Almost surely, 2^100202111220 is an apocalyptic number.

100202111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100202111220 is an abundant number, since it is smaller than the sum of its proper divisors (180363800364).

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

100202111220 is a wasteful number, since it uses less digits than its factorization.

100202111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670035199 (or 1670035197 counting only the distinct ones).

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

Adding to 100202111220 its reverse (22111202001), we get a palindrome (122313313221).

The spelling of 100202111220 in words is "one hundred billion, two hundred two million, one hundred eleven thousand, two hundred twenty".