1222712 has 8 divisors (see below), whose sum is σ = 2292600. Its totient is φ = 611352.

The previous prime is 1222693. The next prime is 1222717. The reversal of 1222712 is 2172221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76412 + ... + 76427.

It is an arithmetic number, because the mean of its divisors is an integer number (286575).

2^1222712 is an apocalyptic number.

It is an amenable number.

1222712 is a deficient number, since it is larger than the sum of its proper divisors (1069888).

1222712 is a wasteful number, since it uses less digits than its factorization.

1222712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152845 (or 152841 counting only the distinct ones).

The product of its digits is 112, while the sum is 17.

The square root of 1222712 is about 1105.7630849328. The cubic root of 1222712 is about 106.9320907202.

Adding to 1222712 its reverse (2172221), we get a palindrome (3394933).

The spelling of 1222712 in words is "one million, two hundred twenty-two thousand, seven hundred twelve".