20102212221212 has 96 divisors (see below), whose sum is σ = 40736222521344. Its totient is φ = 8578353612800.

The previous prime is 20102212221193. The next prime is 20102212221227. The reversal of 20102212221212 is 21212221220102.

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, 603454037 + ... + 603487347.

It is an arithmetic number, because the mean of its divisors is an integer number (424335651264).

Almost surely, 2^{20102212221212} is an apocalyptic number.

20102212221212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20102212221212 is an abundant number, since it is smaller than the sum of its proper divisors (20634010300132).

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

20102212221212 is a wasteful number, since it uses less digits than its factorization.

20102212221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35339 (or 35337 counting only the distinct ones).

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

Adding to 20102212221212 its reverse (21212221220102), we get a palindrome (41314433441314).

The spelling of 20102212221212 in words is "twenty trillion, one hundred two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twelve".