20102112212012 has 6 divisors (see below), whose sum is σ = 35178696371028. Its totient is φ = 10051056106004.

The previous prime is 20102112211943. The next prime is 20102112212033. The reversal of 20102112212012 is 21021221120102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2512764026498 + ... + 2512764026505.

It is an arithmetic number, because the mean of its divisors is an integer number (5863116061838).

Almost surely, 2^{20102112212012} is an apocalyptic number.

It is an amenable number.

20102112212012 is a deficient number, since it is larger than the sum of its proper divisors (15076584159016).

20102112212012 is a wasteful number, since it uses less digits than its factorization.

20102112212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025528053007 (or 5025528053005 counting only the distinct ones).

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

Adding to 20102112212012 its reverse (21021221120102), we get a palindrome (41123333332114).

The spelling of 20102112212012 in words is "twenty trillion, one hundred two billion, one hundred twelve million, two hundred twelve thousand, twelve".