20212133330531 has 8 divisors (see below), whose sum is σ = 21401400342240. Its totient is φ = 19022901651328.

The previous prime is 20212133330483. The next prime is 20212133330573. The reversal of 20212133330531 is 13503333121202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20212133330531 - 2²⁶ = 20212066221667 is a prime.

It is a super-4 number, since 4×20212133330531⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20212133330494 and 20212133330503.

It is not an unprimeable number, because it can be changed into a prime (20212133390531) 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 7 ways as a sum of consecutive naturals, for example, 7650836 + ... + 9947841.

It is an arithmetic number, because the mean of its divisors is an integer number (2675175042780).

Almost surely, 2^{20212133330531} is an apocalyptic number.

20212133330531 is a deficient number, since it is larger than the sum of its proper divisors (1189267011709).

20212133330531 is a wasteful number, since it uses less digits than its factorization.

20212133330531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17666253.

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 20212133330531 its reverse (13503333121202), we get a palindrome (33715466451733).

The spelling of 20212133330531 in words is "twenty trillion, two hundred twelve billion, one hundred thirty-three million, three hundred thirty thousand, five hundred thirty-one".