1212226323133 has 40 divisors (see below), whose sum is σ = 1430173009720. Its totient is φ = 1027321989120.

The previous prime is 1212226323131. The next prime is 1212226323179. The reversal of 1212226323133 is 3313236222121.

It can be written as a sum of positive squares in 4 ways, for example, as 303174675769 + 909051647364 = 550613^2 + 953442^2 .

It is not a de Polignac number, because 1212226323133 - 2¹ = 1212226323131 is a prime.

It is the 1101012-nd Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 1212226323095 and 1212226323104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212226323131) by changing a digit.

It is a nontrivial repunit in base 1101011.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 321628873 + ... + 321632641.

It is an arithmetic number, because the mean of its divisors is an integer number (35754325243).

Almost surely, 2^{1212226323133} is an apocalyptic number.

It is an amenable number.

1212226323133 is a deficient number, since it is larger than the sum of its proper divisors (217946686587).

1212226323133 is an frugal number, since it uses more digits than its factorization.

1212226323133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275 (or 5254 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The spelling of 1212226323133 in words is "one trillion, two hundred twelve billion, two hundred twenty-six million, three hundred twenty-three thousand, one hundred thirty-three".