20211133321212 has 12 divisors (see below), whose sum is σ = 47159311082856. Its totient is φ = 6737044440400.

The previous prime is 20211133321163. The next prime is 20211133321231. The reversal of 20211133321212 is 21212333111202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842130555039 + ... + 842130555062.

It is an arithmetic number, because the mean of its divisors is an integer number (3929942590238).

Almost surely, 2^{20211133321212} is an apocalyptic number.

It is an amenable number.

20211133321212 is an abundant number, since it is smaller than the sum of its proper divisors (26948177761644).

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

20211133321212 is a wasteful number, since it uses less digits than its factorization.

20211133321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684261110108 (or 1684261110106 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 20211133321212 its reverse (21212333111202), we get a palindrome (41423466432414).

The spelling of 20211133321212 in words is "twenty trillion, two hundred eleven billion, one hundred thirty-three million, three hundred twenty-one thousand, two hundred twelve".