201370221 has 24 divisors (see below), whose sum is σ = 326866176. Its totient is φ = 118530720.

The previous prime is 201370207. The next prime is 201370249. The reversal of 201370221 is 122073102.

It is not a de Polignac number, because 201370221 - 2⁷ = 201370093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201370194 and 201370203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201370261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34725 + ... + 40106.

It is an arithmetic number, because the mean of its divisors is an integer number (13619424).

Almost surely, 2^201370221 is an apocalyptic number.

It is an amenable number.

201370221 is a deficient number, since it is larger than the sum of its proper divisors (125495955).

201370221 is a wasteful number, since it uses less digits than its factorization.

201370221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74873 (or 74870 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 201370221 is about 14190.4975599871. The cubic root of 201370221 is about 586.1360261127.

The spelling of 201370221 in words is "two hundred one million, three hundred seventy thousand, two hundred twenty-one".