1211344334226 has 144 divisors (see below), whose sum is σ = 2894517804672. Its totient is φ = 365879404800.

The previous prime is 1211344334209. The next prime is 1211344334227. The reversal of 1211344334226 is 6224334431121.

1211344334226 is a `hidden beast` number, since 1 + 211 + 3 + 4 + 433 + 4 + 2 + 2 + 6 = 666.

It is a super-2 number, since 2×1211344334226² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1211344334227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50311771 + ... + 50335841.

It is an arithmetic number, because the mean of its divisors is an integer number (20100818088).

Almost surely, 2^{1211344334226} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211344334226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447258902336).

1211344334226 is an abundant number, since it is smaller than the sum of its proper divisors (1683173470446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211344334226 is a wasteful number, since it uses less digits than its factorization.

1211344334226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24409 (or 24393 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

Adding to 1211344334226 its reverse (6224334431121), we get a palindrome (7435678765347).

The spelling of 1211344334226 in words is "one trillion, two hundred eleven billion, three hundred forty-four million, three hundred thirty-four thousand, two hundred twenty-six".