20002112212112 has 10 divisors (see below), whose sum is σ = 38754092410998. Its totient is φ = 10001056106048.

The previous prime is 20002112212109. The next prime is 20002112212141. The reversal of 20002112212112 is 21121221120002.

It can be written as a sum of positive squares in only one way, i.e., 15501417849856 + 4500694362256 = 3937184^2 + 2121484^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625066006613 + ... + 625066006644.

Almost surely, 2^{20002112212112} is an apocalyptic number.

It is an amenable number.

20002112212112 is a deficient number, since it is larger than the sum of its proper divisors (18751980198886).

20002112212112 is a wasteful number, since it uses less digits than its factorization.

20002112212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250132013265 (or 1250132013259 counting only the distinct ones).

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

Adding to 20002112212112 its reverse (21121221120002), we get a palindrome (41123333332114).

The spelling of 20002112212112 in words is "twenty trillion, two billion, one hundred twelve million, two hundred twelve thousand, one hundred twelve".