202120212012 has 48 divisors (see below), whose sum is σ = 500694761952. Its totient is φ = 63240238080.

The previous prime is 202120212001. The next prime is 202120212023. The reversal of 202120212012 is 210212021202.

It is an interprime number because it is at equal distance from previous prime (202120212001) and next prime (202120212023).

It is a junction number, because it is equal to n+sod(n) for n = 202120211982 and 202120212000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1252039 + ... + 1404222.

It is an arithmetic number, because the mean of its divisors is an integer number (10431140874).

Almost surely, 2^202120212012 is an apocalyptic number.

It is an amenable number.

202120212012 is an abundant number, since it is smaller than the sum of its proper divisors (298574549940).

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

202120212012 is a wasteful number, since it uses less digits than its factorization.

202120212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656658 (or 2656656 counting only the distinct ones).

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

Adding to 202120212012 its reverse (210212021202), we get a palindrome (412332233214).

The spelling of 202120212012 in words is "two hundred two billion, one hundred twenty million, two hundred twelve thousand, twelve".