212013121301 has 2 divisors, whose sum is σ = 212013121302. Its totient is φ = 212013121300.

The previous prime is 212013121261. The next prime is 212013121319. The reversal of 212013121301 is 103121310212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123762536401 + 88250584900 = 351799^2 + 297070^2 .

It is a cyclic number.

It is not a de Polignac number, because 212013121301 - 2⁶ = 212013121237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212013121301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013121361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006560650 + 106006560651.

It is an arithmetic number, because the mean of its divisors is an integer number (106006560651).

Almost surely, 2^212013121301 is an apocalyptic number.

It is an amenable number.

212013121301 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013121301 is an equidigital number, since it uses as much as digits as its factorization.

212013121301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212013121301 its reverse (103121310212), we get a palindrome (315134431513).

The spelling of 212013121301 in words is "two hundred twelve billion, thirteen million, one hundred twenty-one thousand, three hundred one".