1261222 has 8 divisors (see below), whose sum is σ = 1906056. Its totient is φ = 625872.

The previous prime is 1261217. The next prime is 1261223. The reversal of 1261222 is 2221621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1261196 and 1261205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261223) 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, 2028 + ... + 2575.

It is an arithmetic number, because the mean of its divisors is an integer number (238257).

2^1261222 is an apocalyptic number.

1261222 is a deficient number, since it is larger than the sum of its proper divisors (644834).

1261222 is a wasteful number, since it uses less digits than its factorization.

1261222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4742.

The product of its digits is 96, while the sum is 16.

The square root of 1261222 is about 1123.0414061823. The cubic root of 1261222 is about 108.0431354899.

Adding to 1261222 its reverse (2221621), we get a palindrome (3482843).

The spelling of 1261222 in words is "one million, two hundred sixty-one thousand, two hundred twenty-two".