220202121021212 has 24 divisors (see below), whose sum is σ = 424548103723632. Its totient is φ = 99100864544000.

The previous prime is 220202121021203. The next prime is 220202121021251. The reversal of 220202121021212 is 212120121202022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24775211693 + ... + 24775220580.

It is an arithmetic number, because the mean of its divisors is an integer number (17689504321818).

Almost surely, 2^{220202121021212} is an apocalyptic number.

220202121021212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220202121021212 is a deficient number, since it is larger than the sum of its proper divisors (204345982702420).

220202121021212 is a wasteful number, since it uses less digits than its factorization.

220202121021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49550432389 (or 49550432387 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220202121021212 its reverse (212120121202022), we get a palindrome (432322242223234).

The spelling of 220202121021212 in words is "two hundred twenty trillion, two hundred two billion, one hundred twenty-one million, twenty-one thousand, two hundred twelve".