109202220 has 144 divisors (see below), whose sum is σ = 354751488. Its totient is φ = 27095040.

The previous prime is 109202201. The next prime is 109202227. The reversal of 109202220 is 22202901.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 109202193 and 109202202.

It is not an unprimeable number, because it can be changed into a prime (109202227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 388480 + ... + 388760.

It is an arithmetic number, because the mean of its divisors is an integer number (2463552).

Almost surely, 2^109202220 is an apocalyptic number.

109202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177375744).

109202220 is an abundant number, since it is smaller than the sum of its proper divisors (245549268).

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

109202220 is a wasteful number, since it uses less digits than its factorization.

109202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 109202220 is about 10449.9866028622. The cubic root of 109202220 is about 477.9808410708.

The spelling of 109202220 in words is "one hundred nine million, two hundred two thousand, two hundred twenty".