20220200 has 192 divisors, whose sum is σ = 63745920. Its totient is φ = 5760000.

The previous prime is 20220173. The next prime is 20220217. The reversal of 20220200 is 202202.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200150 + ... + 200250.

It is an arithmetic number, because the mean of its divisors is an integer number (332010).

Almost surely, 2^20220200 is an apocalyptic number.

20220200 is a gapful number since it is divisible by the number (20) 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 20220200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31872960).

20220200 is an abundant number, since it is smaller than the sum of its proper divisors (43525720).

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

20220200 is a wasteful number, since it uses less digits than its factorization.

20220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 20220200 is about 4496.6876698299. The cubic root of 20220200 is about 272.4343191027.

Adding to 20220200 its reverse (202202), we get a palindrome (20422402).

Multiplying 20220200 by its reverse (202202), we get a square (4088564880400 = 2022020²).

20220200 divided by its reverse (202202) gives a square (100 = 10²).

It can be divided in two parts, 202 and 20200, that multiplied together give a square (4080400 = 2020²).

The spelling of 20220200 in words is "twenty million, two hundred twenty thousand, two hundred".