201222 has 24 divisors (see below), whose sum is σ = 498576. Its totient is φ = 57456.

The previous prime is 201211. The next prime is 201233. The reversal of 201222 is 222102.

It is an interprime number because it is at equal distance from previous prime (201211) and next prime (201233).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

201222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 673 + ... + 924.

It is an arithmetic number, because the mean of its divisors is an integer number (20774).

2²⁰¹²²² is an apocalyptic number.

201222 is an abundant number, since it is smaller than the sum of its proper divisors (297354).

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

201222 is a wasteful number, since it uses less digits than its factorization.

201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 201222 is about 448.5777524577. The cubic root of 201222 is about 58.5992179964.

Adding to 201222 its reverse (222102), we get a palindrome (423324).

The spelling of 201222 in words is "two hundred one thousand, two hundred twenty-two", and thus it is an iban number.