212200333021 has 4 divisors (see below), whose sum is σ = 215107186972. Its totient is φ = 209293479072.

The previous prime is 212200332979. The next prime is 212200333031. The reversal of 212200333021 is 120333002212.

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 111242260900 + 100958072121 = 333530^2 + 317739^2 .

It is a cyclic number.

It is not a de Polignac number, because 212200333021 - 2¹⁷ = 212200201949 is a prime.

It is a super-3 number, since 3×212200333021³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212200333021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200333031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1453426866 + ... + 1453427011.

It is an arithmetic number, because the mean of its divisors is an integer number (53776796743).

Almost surely, 2^212200333021 is an apocalyptic number.

It is an amenable number.

212200333021 is a deficient number, since it is larger than the sum of its proper divisors (2906853951).

212200333021 is an equidigital number, since it uses as much as digits as its factorization.

212200333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906853950.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212200333021 its reverse (120333002212), we get a palindrome (332533335233).

It can be divided in two parts, 2122003 and 33021, that added together give a square (2155024 = 1468²).

The spelling of 212200333021 in words is "two hundred twelve billion, two hundred million, three hundred thirty-three thousand, twenty-one".