1226133263166 has 16 divisors (see below), whose sum is σ = 2802590315904. Its totient is φ = 350323789464.

The previous prime is 1226133263153. The next prime is 1226133263167. The reversal of 1226133263166 is 6613623316221.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 29193649123 = 1226133263166 / (1 + 2 + 2 + 6 + 1 + 3 + 3 + 2 + 6 + 3 + 1 + 6 + 6).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226133263167) 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, 14596824520 + ... + 14596824603.

It is an arithmetic number, because the mean of its divisors is an integer number (175161894744).

Almost surely, 2^{1226133263166} is an apocalyptic number.

1226133263166 is an abundant number, since it is smaller than the sum of its proper divisors (1576457052738).

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

1226133263166 is a wasteful number, since it uses less digits than its factorization.

1226133263166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29193649135.

The product of its digits is 279936, while the sum is 42.

Adding to 1226133263166 its reverse (6613623316221), we get a palindrome (7839756579387).

The spelling of 1226133263166 in words is "one trillion, two hundred twenty-six billion, one hundred thirty-three million, two hundred sixty-three thousand, one hundred sixty-six".