20302111212 has 48 divisors (see below), whose sum is σ = 50448176352. Its totient is φ = 6332462080.

The previous prime is 20302111189. The next prime is 20302111223. The reversal of 20302111212 is 21211120302.

It is a super-3 number, since 3×20302111212³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20302111191 and 20302111200.

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 15 ways as a sum of consecutive naturals, for example, 252339 + ... + 322922.

It is an arithmetic number, because the mean of its divisors is an integer number (1051003674).

Almost surely, 2^20302111212 is an apocalyptic number.

It is an amenable number.

20302111212 is an abundant number, since it is smaller than the sum of its proper divisors (30146065140).

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

20302111212 is a wasteful number, since it uses less digits than its factorization.

20302111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575458 (or 575456 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20302111212 its reverse (21211120302), we get a palindrome (41513231514).

The spelling of 20302111212 in words is "twenty billion, three hundred two million, one hundred eleven thousand, two hundred twelve".