1222331 has 4 divisors (see below), whose sum is σ = 1333464. Its totient is φ = 1111200.

The previous prime is 1222307. The next prime is 1222373. The reversal of 1222331 is 1332221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1222331 - 2⁶ = 1222267 is a prime.

It is a super-2 number, since 2×1222331² = 2988186147122, which contains 22 as substring.

It is an Ulam 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, 55550 + ... + 55571.

It is an arithmetic number, because the mean of its divisors is an integer number (333366).

2^1222331 is an apocalyptic number.

1222331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222331 is a deficient number, since it is larger than the sum of its proper divisors (111133).

1222331 is a wasteful number, since it uses less digits than its factorization.

1222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111132.

The product of its digits is 72, while the sum is 14.

The square root of 1222331 is about 1105.5907922916. The cubic root of 1222331 is about 106.9209828008.

Adding to 1222331 its reverse (1332221), we get a palindrome (2554552).

The spelling of 1222331 in words is "one million, two hundred twenty-two thousand, three hundred thirty-one".