212040440033 has 4 divisors (see below), whose sum is σ = 212041843860. Its totient is φ = 212039036208.

The previous prime is 212040439999. The next prime is 212040440057. The reversal of 212040440033 is 330044040212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24371268769 + 187669171264 = 156113^2 + 433208^2 .

It is a cyclic number.

It is not a de Polignac number, because 212040440033 - 2²⁰ = 212039391457 is a prime.

It is a super-2 number, since 2×212040440033² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212040439990 and 212040440008.

It is not an unprimeable number, because it can be changed into a prime (212040440063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443678 + ... + 787991.

It is an arithmetic number, because the mean of its divisors is an integer number (53010460965).

Almost surely, 2^212040440033 is an apocalyptic number.

It is an amenable number.

212040440033 is a deficient number, since it is larger than the sum of its proper divisors (1403827).

212040440033 is a wasteful number, since it uses less digits than its factorization.

212040440033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403826.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 212040440033 its reverse (330044040212), we get a palindrome (542084480245).

The spelling of 212040440033 in words is "two hundred twelve billion, forty million, four hundred forty thousand, thirty-three".