212021231301 has 18 divisors (see below), whose sum is σ = 336625078790. Its totient is φ = 128497715280.

The previous prime is 212021231297. The next prime is 212021231311. The reversal of 212021231301 is 103132120212.

212021231301 is a `hidden beast` number, since 2 + 120 + 212 + 31 + 301 = 666.

It can be written as a sum of positive squares in only one way, i.e., 126785844900 + 85235386401 = 356070^2 + 291951^2 .

It is not a de Polignac number, because 212021231301 - 2² = 212021231297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021231311) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 97345666 + ... + 97347843.

Almost surely, 2^212021231301 is an apocalyptic number.

It is an amenable number.

212021231301 is a deficient number, since it is larger than the sum of its proper divisors (124603847489).

212021231301 is a wasteful number, since it uses less digits than its factorization.

212021231301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194693537 (or 194693523 counting only the distinct ones).

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

Adding to 212021231301 its reverse (103132120212), we get a palindrome (315153351513).

The spelling of 212021231301 in words is "two hundred twelve billion, twenty-one million, two hundred thirty-one thousand, three hundred one".