1222201 has 4 divisors (see below), whose sum is σ = 1234404. Its totient is φ = 1210000.

The previous prime is 1222187. The next prime is 1222219. The reversal of 1222201 is 1022221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1207801 + 14400 = 1099^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222201 - 2¹⁹ = 697913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5950 + ... + 6151.

It is an arithmetic number, because the mean of its divisors is an integer number (308601).

2^1222201 is an apocalyptic number.

It is an amenable number.

1222201 is a deficient number, since it is larger than the sum of its proper divisors (12203).

1222201 is a wasteful number, since it uses less digits than its factorization.

1222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12202.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1222201 is about 1105.5319986323. The cubic root of 1222201 is about 106.9171921689.

Adding to 1222201 its reverse (1022221), we get a palindrome (2244422).

It can be divided in two parts, 122220 and 1, that added together give a palindrome (122221).

The spelling of 1222201 in words is "one million, two hundred twenty-two thousand, two hundred one".