202120122012 has 12 divisors (see below), whose sum is σ = 471613618056. Its totient is φ = 67373374000.

The previous prime is 202120121989. The next prime is 202120122101. The reversal of 202120122012 is 210221021202.

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

It is a junction number, because it is equal to n+sod(n) for n = 202120121982 and 202120122000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8421671739 + ... + 8421671762.

It is an arithmetic number, because the mean of its divisors is an integer number (39301134838).

Almost surely, 2^202120122012 is an apocalyptic number.

It is an amenable number.

202120122012 is an abundant number, since it is smaller than the sum of its proper divisors (269493496044).

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

202120122012 is a wasteful number, since it uses less digits than its factorization.

202120122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16843343508 (or 16843343506 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202120122012 its reverse (210221021202), we get a palindrome (412341143214).

The spelling of 202120122012 in words is "two hundred two billion, one hundred twenty million, one hundred twenty-two thousand, twelve".