133511214212 has 12 divisors (see below), whose sum is σ = 247388426460. Its totient is φ = 62828806656.

The previous prime is 133511214173. The next prime is 133511214233. The reversal of 133511214212 is 212412115331.

It can be written as a sum of positive squares in 2 ways, for example, as 111921026116 + 21590188096 = 334546^2 + 146936^2 .

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 3 ways as a sum of consecutive naturals, for example, 981700037 + ... + 981700172.

It is an arithmetic number, because the mean of its divisors is an integer number (20615702205).

Almost surely, 2^133511214212 is an apocalyptic number.

It is an amenable number.

133511214212 is a deficient number, since it is larger than the sum of its proper divisors (113877212248).

133511214212 is a wasteful number, since it uses less digits than its factorization.

133511214212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963400230 (or 1963400228 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

Adding to 133511214212 its reverse (212412115331), we get a palindrome (345923329543).

The spelling of 133511214212 in words is "one hundred thirty-three billion, five hundred eleven million, two hundred fourteen thousand, two hundred twelve".