201148220 has 96 divisors (see below), whose sum is σ = 526848000. Its totient is φ = 62809344.

The previous prime is 201148219. The next prime is 201148261. The reversal of 201148220 is 22841102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 201148192 and 201148201.

It is a congruent number.

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, 143081 + ... + 144479.

It is an arithmetic number, because the mean of its divisors is an integer number (5488000).

Almost surely, 2^201148220 is an apocalyptic number.

201148220 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 201148220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263424000).

201148220 is an abundant number, since it is smaller than the sum of its proper divisors (325699780).

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

201148220 is a wasteful number, since it uses less digits than its factorization.

201148220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 201148220 is about 14182.6732317994. The cubic root of 201148220 is about 585.9205513012.

Adding to 201148220 its reverse (22841102), we get a palindrome (223989322).

The spelling of 201148220 in words is "two hundred one million, one hundred forty-eight thousand, two hundred twenty".