212012221301 has 4 divisors (see below), whose sum is σ = 212018020704. Its totient is φ = 212006421900.

The previous prime is 212012221271. The next prime is 212012221321. The reversal of 212012221301 is 103122210212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212012221301 - 2¹⁸ = 212011959157 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 212012221301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012221321) 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, 2844515 + ... + 2918096.

It is an arithmetic number, because the mean of its divisors is an integer number (53004505176).

Almost surely, 2^212012221301 is an apocalyptic number.

It is an amenable number.

212012221301 is a deficient number, since it is larger than the sum of its proper divisors (5799403).

212012221301 is an equidigital number, since it uses as much as digits as its factorization.

212012221301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5799402.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212012221301 its reverse (103122210212), we get a palindrome (315134431513).

The spelling of 212012221301 in words is "two hundred twelve billion, twelve million, two hundred twenty-one thousand, three hundred one".