1211232311122 has 16 divisors (see below), whose sum is σ = 1881035317440. Its totient is φ = 584254692112.

The previous prime is 1211232311117. The next prime is 1211232311123. The reversal of 1211232311122 is 2211132321121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1211232311093 and 1211232311102.

It is not an unprimeable number, because it can be changed into a prime (1211232311123) 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, 8466808 + ... + 8608675.

It is an arithmetic number, because the mean of its divisors is an integer number (117564707340).

Almost surely, 2^{1211232311122} is an apocalyptic number.

1211232311122 is a deficient number, since it is larger than the sum of its proper divisors (669803006318).

1211232311122 is a wasteful number, since it uses less digits than its factorization.

1211232311122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17076737.

The product of its digits is 288, while the sum is 22.

Adding to 1211232311122 its reverse (2211132321121), we get a palindrome (3422364632243).

Subtracting 1211232311122 from its reverse (2211132321121), we obtain a palindrome (999900009999).

The spelling of 1211232311122 in words is "one trillion, two hundred eleven billion, two hundred thirty-two million, three hundred eleven thousand, one hundred twenty-two".