20102121220012 has 48 divisors (see below), whose sum is σ = 37955860886944. Its totient is φ = 9260495424000.

The previous prime is 20102121220001. The next prime is 20102121220039. The reversal of 20102121220012 is 21002212120102.

It is a happy number.

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, 265438312 + ... + 265514032.

Almost surely, 2^{20102121220012} is an apocalyptic number.

It is an amenable number.

20102121220012 is a deficient number, since it is larger than the sum of its proper divisors (17853739666932).

20102121220012 is a wasteful number, since it uses less digits than its factorization.

20102121220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85250 (or 85248 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20102121220012 its reverse (21002212120102), we get a palindrome (41104333340114).

The spelling of 20102121220012 in words is "twenty trillion, one hundred two billion, one hundred twenty-one million, two hundred twenty thousand, twelve".