212302330021331 has 16 divisors (see below), whose sum is σ = 233936327121408. Its totient is φ = 191059909413600.

The previous prime is 212302330021321. The next prime is 212302330021339. The reversal of 212302330021331 is 133120033203212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212302330021331 is a prime.

It is a super-2 number, since 2×212302330021331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212302330021331.

It is not an unprimeable number, because it can be changed into a prime (212302330021339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63680795 + ... + 66931668.

It is an arithmetic number, because the mean of its divisors is an integer number (14621020445088).

Almost surely, 2^{212302330021331} is an apocalyptic number.

212302330021331 is a deficient number, since it is larger than the sum of its proper divisors (21633997100077).

212302330021331 is a wasteful number, since it uses less digits than its factorization.

212302330021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130613962.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 212302330021331 its reverse (133120033203212), we get a palindrome (345422363224543).

The spelling of 212302330021331 in words is "two hundred twelve trillion, three hundred two billion, three hundred thirty million, twenty-one thousand, three hundred thirty-one".