302121120212 has 12 divisors (see below), whose sum is σ = 528718086036. Its totient is φ = 151058809920.

The previous prime is 302121120211. The next prime is 302121120239. The reversal of 302121120212 is 212021121203.

It can be written as a sum of positive squares in 2 ways, for example, as 268071275536 + 34049844676 = 517756^2 + 184526^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302121120211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683 + ... + 777330.

It is an arithmetic number, because the mean of its divisors is an integer number (44059840503).

Almost surely, 2^302121120212 is an apocalyptic number.

It is an amenable number.

302121120212 is a deficient number, since it is larger than the sum of its proper divisors (226596965824).

302121120212 is a wasteful number, since it uses less digits than its factorization.

302121120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875098 (or 875096 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 302121120212 its reverse (212021121203), we get a palindrome (514142241415).

Subtracting from 302121120212 its reverse (212021121203), we obtain a palindrome (90099999009).

The spelling of 302121120212 in words is "three hundred two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".