20102202111212 has 48 divisors (see below), whose sum is σ = 39552824247552. Its totient is φ = 8869896087360.

The previous prime is 20102202111191. The next prime is 20102202111241. The reversal of 20102202111212 is 21211120220102.

It is a super-2 number, since 2×20102202111212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2126114 + ... + 6687657.

It is an arithmetic number, because the mean of its divisors is an integer number (824017171824).

Almost surely, 2^{20102202111212} is an apocalyptic number.

It is an amenable number.

20102202111212 is a deficient number, since it is larger than the sum of its proper divisors (19450622136340).

20102202111212 is a wasteful number, since it uses less digits than its factorization.

20102202111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8815718 (or 8815716 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20102202111212 its reverse (21211120220102), we get a palindrome (41313322331314).

The spelling of 20102202111212 in words is "twenty trillion, one hundred two billion, two hundred two million, one hundred eleven thousand, two hundred twelve".