1222231352 has 8 divisors (see below), whose sum is σ = 2291683800. Its totient is φ = 611115672.

The previous prime is 1222231343. The next prime is 1222231379. The reversal of 1222231352 is 2531322221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76389452 + ... + 76389467.

It is an arithmetic number, because the mean of its divisors is an integer number (286460475).

Almost surely, 2^1222231352 is an apocalyptic number.

It is an amenable number.

1222231352 is a deficient number, since it is larger than the sum of its proper divisors (1069452448).

1222231352 is a wasteful number, since it uses less digits than its factorization.

1222231352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152778925 (or 152778921 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 1222231352 is about 34960.4255122846. The cubic root of 1222231352 is about 1069.1807721807.

Adding to 1222231352 its reverse (2531322221), we get a palindrome (3753553573).

The spelling of 1222231352 in words is "one billion, two hundred twenty-two million, two hundred thirty-one thousand, three hundred fifty-two".