212021131301 has 16 divisors (see below), whose sum is σ = 256710496896. Its totient is φ = 170944183296.

The previous prime is 212021131291. The next prime is 212021131303. The reversal of 212021131301 is 103131120212.

212021131301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212021131301 - 2¹⁴ = 212021114917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 212021131301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021131303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302036 + ... + 717821.

It is an arithmetic number, because the mean of its divisors is an integer number (16044406056).

Almost surely, 2^212021131301 is an apocalyptic number.

It is an amenable number.

212021131301 is a deficient number, since it is larger than the sum of its proper divisors (44689365595).

212021131301 is a wasteful number, since it uses less digits than its factorization.

212021131301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021628.

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

Adding to 212021131301 its reverse (103131120212), we get a palindrome (315152251513).

It can be divided in two parts, 2120211 and 31301, that added together give a palindrome (2151512).

The spelling of 212021131301 in words is "two hundred twelve billion, twenty-one million, one hundred thirty-one thousand, three hundred one".