212021131302 has 24 divisors (see below), whose sum is σ = 471794771136. Its totient is φ = 68763609936.

The previous prime is 212021131291. The next prime is 212021131303. The reversal of 212021131302 is 203131120212.

212021131302 is a `hidden beast` number, since 2 + 120 + 211 + 31 + 302 = 666.

212021131302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 159174358 + ... + 159175689.

It is an arithmetic number, because the mean of its divisors is an integer number (19658115464).

Almost surely, 2^212021131302 is an apocalyptic number.

212021131302 is an abundant number, since it is smaller than the sum of its proper divisors (259773639834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212021131302 is a wasteful number, since it uses less digits than its factorization.

212021131302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318350092 (or 318350089 counting only the distinct ones).

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

Adding to 212021131302 its reverse (203131120212), we get a palindrome (415152251514).

The spelling of 212021131302 in words is "two hundred twelve billion, twenty-one million, one hundred thirty-one thousand, three hundred two".