212121133202132 has 24 divisors (see below), whose sum is σ = 462809745168960. Its totient is φ = 82644597351360.

The previous prime is 212121133202113. The next prime is 212121133202177. The reversal of 212121133202132 is 231202331121212.

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 7 ways as a sum of consecutive naturals, for example, 344352488657 + ... + 344352489272.

It is an arithmetic number, because the mean of its divisors is an integer number (19283739382040).

Almost surely, 2^{212121133202132} is an apocalyptic number.

212121133202132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212121133202132 is an abundant number, since it is smaller than the sum of its proper divisors (250688611966828).

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

212121133202132 is a wasteful number, since it uses less digits than its factorization.

212121133202132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688704977951 (or 688704977949 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 212121133202132 its reverse (231202331121212), we get a palindrome (443323464323344).

The spelling of 212121133202132 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred thirty-three million, two hundred two thousand, one hundred thirty-two".