212123233033 has 4 divisors (see below), whose sum is σ = 212196457620. Its totient is φ = 212050008448.

The previous prime is 212123232973. The next prime is 212123233039. The reversal of 212123233033 is 330332321212.

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 126459894544 + 85663338489 = 355612^2 + 292683^2 .

It is a cyclic number.

It is not a de Polignac number, because 212123233033 - 2²⁹ = 211586362121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212123232989 and 212123233007.

It is not an unprimeable number, because it can be changed into a prime (212123233039) 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, 36607948 + ... + 36613741.

It is an arithmetic number, because the mean of its divisors is an integer number (53049114405).

Almost surely, 2^212123233033 is an apocalyptic number.

It is an amenable number.

212123233033 is a deficient number, since it is larger than the sum of its proper divisors (73224587).

212123233033 is an equidigital number, since it uses as much as digits as its factorization.

212123233033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73224586.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 212123233033 its reverse (330332321212), we get a palindrome (542455554245).

The spelling of 212123233033 in words is "two hundred twelve billion, one hundred twenty-three million, two hundred thirty-three thousand, thirty-three".