1211344334242 has 16 divisors (see below), whose sum is σ = 2127238831872. Its totient is φ = 506485435680.

The previous prime is 1211344334237. The next prime is 1211344334243. The reversal of 1211344334242 is 2424334431121.

It is a super-2 number, since 2×1211344334242² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211344334198 and 1211344334207.

It is not an unprimeable number, because it can be changed into a prime (1211344334243) 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, 1055177418 + ... + 1055178565.

It is an arithmetic number, because the mean of its divisors is an integer number (132952426992).

Almost surely, 2^{1211344334242} is an apocalyptic number.

1211344334242 is a deficient number, since it is larger than the sum of its proper divisors (915894497630).

1211344334242 is a wasteful number, since it uses less digits than its factorization.

1211344334242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110356033.

The product of its digits is 55296, while the sum is 34.

Adding to 1211344334242 its reverse (2424334431121), we get a palindrome (3635678765363).

The spelling of 1211344334242 in words is "one trillion, two hundred eleven billion, three hundred forty-four million, three hundred thirty-four thousand, two hundred forty-two".