20102020221212 has 6 divisors (see below), whose sum is σ = 35178535387128. Its totient is φ = 10051010110604.

The previous prime is 20102020221211. The next prime is 20102020221221. The reversal of 20102020221212 is 21212202020102.

It is a happy number.

It is a super-2 number, since 2×20102020221212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102020221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2512752527648 + ... + 2512752527655.

It is an arithmetic number, because the mean of its divisors is an integer number (5863089231188).

Almost surely, 2^{20102020221212} is an apocalyptic number.

It is an amenable number.

20102020221212 is a deficient number, since it is larger than the sum of its proper divisors (15076515165916).

20102020221212 is a wasteful number, since it uses less digits than its factorization.

20102020221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025505055307 (or 5025505055305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20102020221212 its reverse (21212202020102), we get a palindrome (41314222241314).

The spelling of 20102020221212 in words is "twenty trillion, one hundred two billion, twenty million, two hundred twenty-one thousand, two hundred twelve".