1222412 has 6 divisors (see below), whose sum is σ = 2139228. Its totient is φ = 611204.

The previous prime is 1222411. The next prime is 1222433. The reversal of 1222412 is 2142221.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1222411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152798 + ... + 152805.

It is an arithmetic number, because the mean of its divisors is an integer number (356538).

2^1222412 is an apocalyptic number.

It is an amenable number.

1222412 is a deficient number, since it is larger than the sum of its proper divisors (916816).

1222412 is a wasteful number, since it uses less digits than its factorization.

1222412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305607 (or 305605 counting only the distinct ones).

The product of its digits is 64, while the sum is 14.

The square root of 1222412 is about 1105.6274236830. The cubic root of 1222412 is about 106.9233445202.

Adding to 1222412 its reverse (2142221), we get a palindrome (3364633).

The spelling of 1222412 in words is "one million, two hundred twenty-two thousand, four hundred twelve".