1222141 has 4 divisors (see below), whose sum is σ = 1248192. Its totient is φ = 1196092.

The previous prime is 1222129. The next prime is 1222157. The reversal of 1222141 is 1412221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12955 + ... + 13048.

It is an arithmetic number, because the mean of its divisors is an integer number (312048).

2^1222141 is an apocalyptic number.

It is an amenable number.

1222141 is a deficient number, since it is larger than the sum of its proper divisors (26051).

1222141 is an equidigital number, since it uses as much as digits as its factorization.

1222141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26050.

The product of its digits is 32, while the sum is 13.

The square root of 1222141 is about 1105.5048620427. The cubic root of 1222141 is about 106.9154425559.

Adding to 1222141 its reverse (1412221), we get a palindrome (2634362).

The spelling of 1222141 in words is "one million, two hundred twenty-two thousand, one hundred forty-one".