212001123133 has 8 divisors (see below), whose sum is σ = 214325127800. Its totient is φ = 209679943680.

The previous prime is 212001123127. The next prime is 212001123137. The reversal of 212001123133 is 331321100212.

It can be written as a sum of positive squares in 4 ways, for example, as 376282404 + 211624840729 = 19398^2 + 460027^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212001123133 - 2¹⁷ = 212000992061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212001123133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001123137) 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, 555228 + ... + 855733.

It is an arithmetic number, because the mean of its divisors is an integer number (26790640975).

Almost surely, 2^212001123133 is an apocalyptic number.

It is an amenable number.

212001123133 is a deficient number, since it is larger than the sum of its proper divisors (2324004667).

212001123133 is a wasteful number, since it uses less digits than its factorization.

212001123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412607.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212001123133 its reverse (331321100212), we get a palindrome (543322223345).

The spelling of 212001123133 in words is "two hundred twelve billion, one million, one hundred twenty-three thousand, one hundred thirty-three".