20302223221212 has 96 divisors (see below), whose sum is σ = 50817565016064. Its totient is φ = 6293488344000.

The previous prime is 20302223221157. The next prime is 20302223221237. The reversal of 20302223221212 is 21212232220302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3223614 + ... + 7141157.

It is an arithmetic number, because the mean of its divisors is an integer number (529349635584).

Almost surely, 2^{20302223221212} is an apocalyptic number.

It is an amenable number.

20302223221212 is an abundant number, since it is smaller than the sum of its proper divisors (30515341794852).

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

20302223221212 is a wasteful number, since it uses less digits than its factorization.

20302223221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10364999 (or 10364997 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20302223221212 its reverse (21212232220302), we get a palindrome (41514455441514).

The spelling of 20302223221212 in words is "twenty trillion, three hundred two billion, two hundred twenty-three million, two hundred twenty-one thousand, two hundred twelve".