20212133012 has 12 divisors (see below), whose sum is σ = 35407443540. Its totient is φ = 10095720576.

The previous prime is 20212132999. The next prime is 20212133027. The reversal of 20212133012 is 21033121202.

It can be written as a sum of positive squares in 2 ways, for example, as 16598199556 + 3613933456 = 128834^2 + 60116^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2582087 + ... + 2589902.

It is an arithmetic number, because the mean of its divisors is an integer number (2950620295).

Almost surely, 2^20212133012 is an apocalyptic number.

It is an amenable number.

20212133012 is a deficient number, since it is larger than the sum of its proper divisors (15195310528).

20212133012 is a wasteful number, since it uses less digits than its factorization.

20212133012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5172970 (or 5172968 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20212133012 its reverse (21033121202), we get a palindrome (41245254214).

The spelling of 20212133012 in words is "twenty billion, two hundred twelve million, one hundred thirty-three thousand, twelve".