201000220 has 24 divisors (see below), whose sum is σ = 440453664. Its totient is φ = 76904256.

The previous prime is 201000211. The next prime is 201000229. The reversal of 201000220 is 22000102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201000211) and next prime (201000229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218019 + ... + 218938.

It is an arithmetic number, because the mean of its divisors is an integer number (18352236).

Almost surely, 2^201000220 is an apocalyptic number.

201000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000220 is an abundant number, since it is smaller than the sum of its proper divisors (239453444).

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

201000220 is a wasteful number, since it uses less digits than its factorization.

201000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436989 (or 436987 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 201000220 is about 14177.4546375575. The cubic root of 201000220 is about 585.7768139812.

Adding to 201000220 its reverse (22000102), we get a palindrome (223000322).

The spelling of 201000220 in words is "two hundred one million, two hundred twenty", and thus it is an aban number.