1211122340235 has 48 divisors (see below), whose sum is σ = 2209885260960. Its totient is φ = 611902771200.

The previous prime is 1211122340227. The next prime is 1211122340249. The reversal of 1211122340235 is 5320432211121.

It is a happy number.

1211122340235 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 1 + 223 + 402 + 35 = 666.

It is not a de Polignac number, because 1211122340235 - 2³ = 1211122340227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211122340199 and 1211122340208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28707777 + ... + 28749933.

It is an arithmetic number, because the mean of its divisors is an integer number (46039276270).

Almost surely, 2^{1211122340235} is an apocalyptic number.

1211122340235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1211122340235 is a deficient number, since it is larger than the sum of its proper divisors (998762920725).

1211122340235 is a wasteful number, since it uses less digits than its factorization.

1211122340235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75788 (or 75785 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1211122340235 its reverse (5320432211121), we get a palindrome (6531554551356).

The spelling of 1211122340235 in words is "one trillion, two hundred eleven billion, one hundred twenty-two million, three hundred forty thousand, two hundred thirty-five".