1212231122 has 16 divisors (see below), whose sum is σ = 1922645760. Its totient is φ = 571635792.

The previous prime is 1212231113. The next prime is 1212231127. The reversal of 1212231122 is 2211322121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212231122.

It is not an unprimeable number, because it can be changed into a prime (1212231127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63053 + ... + 80000.

It is an arithmetic number, because the mean of its divisors is an integer number (120165360).

Almost surely, 2^1212231122 is an apocalyptic number.

1212231122 is a deficient number, since it is larger than the sum of its proper divisors (710414638).

1212231122 is a wasteful number, since it uses less digits than its factorization.

1212231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143297.

The product of its digits is 96, while the sum is 17.

The square root of 1212231122 is about 34817.1096158196. The cubic root of 1212231122 is about 1066.2567901559.

Adding to 1212231122 its reverse (2211322121), we get a palindrome (3423553243).

Subtracting 1212231122 from its reverse (2211322121), we obtain a palindrome (999090999).

The spelling of 1212231122 in words is "one billion, two hundred twelve million, two hundred thirty-one thousand, one hundred twenty-two".