201301221 has 32 divisors (see below), whose sum is σ = 306828288. Its totient is φ = 116202240.

The previous prime is 201301157. The next prime is 201301241. The reversal of 201301221 is 122103102.

It is not a de Polignac number, because 201301221 - 2⁶ = 201301157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201301197 and 201301206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201301241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255390 + ... + 256176.

It is an arithmetic number, because the mean of its divisors is an integer number (9588384).

Almost surely, 2^201301221 is an apocalyptic number.

It is an amenable number.

201301221 is a deficient number, since it is larger than the sum of its proper divisors (105527067).

201301221 is a wasteful number, since it uses less digits than its factorization.

201301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201301221 is about 14188.0661472944. The cubic root of 201301221 is about 586.0690714826.

Adding to 201301221 its reverse (122103102), we get a palindrome (323404323).

The spelling of 201301221 in words is "two hundred one million, three hundred one thousand, two hundred twenty-one".