212021032301 has 4 divisors (see below), whose sum is σ = 228330342492. Its totient is φ = 195711722112.

The previous prime is 212021032297. The next prime is 212021032337. The reversal of 212021032301 is 103230120212.

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 125793646276 + 86227386025 = 354674^2 + 293645^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021032301 - 2² = 212021032297 is a prime.

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 212021032301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021032501) 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, 8154655076 + ... + 8154655101.

It is an arithmetic number, because the mean of its divisors is an integer number (57082585623).

Almost surely, 2^212021032301 is an apocalyptic number.

It is an amenable number.

212021032301 is a deficient number, since it is larger than the sum of its proper divisors (16309310191).

212021032301 is a wasteful number, since it uses less digits than its factorization.

212021032301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16309310190.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212021032301 its reverse (103230120212), we get a palindrome (315251152513).

The spelling of 212021032301 in words is "two hundred twelve billion, twenty-one million, thirty-two thousand, three hundred one".