1212231322 has 8 divisors (see below), whose sum is σ = 1830389472. Its totient is φ = 602101500.

The previous prime is 1212231301. The next prime is 1212231329. The reversal of 1212231322 is 2231322121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1212231322.

It is not an unprimeable number, because it can be changed into a prime (1212231329) 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, 2006704 + ... + 2007307.

It is an arithmetic number, because the mean of its divisors is an integer number (228798684).

Almost surely, 2^1212231322 is an apocalyptic number.

1212231322 is a deficient number, since it is larger than the sum of its proper divisors (618158150).

1212231322 is a wasteful number, since it uses less digits than its factorization.

1212231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014164.

The product of its digits is 288, while the sum is 19.

The square root of 1212231322 is about 34817.1124879706. The cubic root of 1212231322 is about 1066.2568487947.

Adding to 1212231322 its reverse (2231322121), we get a palindrome (3443553443).

It can be divided in two parts, 121 and 2231322, that multiplied together give a palindrome (269989962).

The spelling of 1212231322 in words is "one billion, two hundred twelve million, two hundred thirty-one thousand, three hundred twenty-two".