212021132333 has 4 divisors (see below), whose sum is σ = 212098826940. Its totient is φ = 211943437728.

The previous prime is 212021132303. The next prime is 212021132339. The reversal of 212021132333 is 333231120212.

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 177824986249 + 34196146084 = 421693^2 + 184922^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021132333 - 2¹² = 212021128237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021132299 and 212021132308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021132339) 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, 38843210 + ... + 38848667.

It is an arithmetic number, because the mean of its divisors is an integer number (53024706735).

Almost surely, 2^212021132333 is an apocalyptic number.

It is an amenable number.

212021132333 is a deficient number, since it is larger than the sum of its proper divisors (77694607).

212021132333 is an equidigital number, since it uses as much as digits as its factorization.

212021132333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77694606.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 212021132333 its reverse (333231120212), we get a palindrome (545252252545).

The spelling of 212021132333 in words is "two hundred twelve billion, twenty-one million, one hundred thirty-two thousand, three hundred thirty-three".