200101220 has 48 divisors (see below), whose sum is σ = 485388288. Its totient is φ = 68482560.

The previous prime is 200101207. The next prime is 200101229. The reversal of 200101220 is 22101002.

It is a junction number, because it is equal to n+sod(n) for n = 200101198 and 200101207.

It is not an unprimeable number, because it can be changed into a prime (200101229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23012 + ... + 30491.

It is an arithmetic number, because the mean of its divisors is an integer number (10112256).

Almost surely, 2^200101220 is an apocalyptic number.

200101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200101220 is an abundant number, since it is smaller than the sum of its proper divisors (285287068).

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

200101220 is a wasteful number, since it uses less digits than its factorization.

200101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53540 (or 53538 counting only the distinct ones).

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

The square root of 200101220 is about 14145.7138384742. The cubic root of 200101220 is about 584.9021873624.

Adding to 200101220 its reverse (22101002), we get a palindrome (222202222).

The spelling of 200101220 in words is "two hundred million, one hundred one thousand, two hundred twenty".