212220311301 has 48 divisors (see below), whose sum is σ = 326295131760. Its totient is φ = 132696345600.

The previous prime is 212220311287. The next prime is 212220311333. The reversal of 212220311301 is 103113022212.

It can be written as a sum of positive squares in 8 ways, for example, as 98753062500 + 113467248801 = 314250^2 + 336849^2 .

It is not a de Polignac number, because 212220311301 - 2¹⁴ = 212220294917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220311351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1321185 + ... + 1473081.

It is an arithmetic number, because the mean of its divisors is an integer number (6797815245).

Almost surely, 2^212220311301 is an apocalyptic number.

It is an amenable number.

212220311301 is a deficient number, since it is larger than the sum of its proper divisors (114074820459).

212220311301 is a wasteful number, since it uses less digits than its factorization.

212220311301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152086 (or 152083 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212220311301 its reverse (103113022212), we get a palindrome (315333333513).

The spelling of 212220311301 in words is "two hundred twelve billion, two hundred twenty million, three hundred eleven thousand, three hundred one".