201012110220 has 96 divisors (see below), whose sum is σ = 581612322816. Its totient is φ = 51818515200.

The previous prime is 201012110197. The next prime is 201012110249. The reversal of 201012110220 is 22011210102.

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 = 201012110196 and 201012110205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1692837 + ... + 1807683.

It is an arithmetic number, because the mean of its divisors is an integer number (6058461696).

Almost surely, 2^201012110220 is an apocalyptic number.

201012110220 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 201012110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290806161408).

201012110220 is an abundant number, since it is smaller than the sum of its proper divisors (380600212596).

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

201012110220 is a wasteful number, since it uses less digits than its factorization.

201012110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115831 (or 115829 counting only the distinct ones).

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

Adding to 201012110220 its reverse (22011210102), we get a palindrome (223023320322).

The spelling of 201012110220 in words is "two hundred one billion, twelve million, one hundred ten thousand, two hundred twenty".