20002121201112 has 64 divisors (see below), whose sum is σ = 50165245213920. Its totient is φ = 6646049952768.

The previous prime is 20002121201089. The next prime is 20002121201129. The reversal of 20002121201112 is 21110212120002.

It is a junction number, because it is equal to n+sod(n) for n = 20002121201091 and 20002121201100.

It is a congruent 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, 238826508 + ... + 238910244.

Almost surely, 2^{20002121201112} is an apocalyptic number.

It is an amenable number.

20002121201112 is an abundant number, since it is smaller than the sum of its proper divisors (30163124012808).

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

20002121201112 is a wasteful number, since it uses less digits than its factorization.

20002121201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115460 (or 115456 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20002121201112 its reverse (21110212120002), we get a palindrome (41112333321114).

The spelling of 20002121201112 in words is "twenty trillion, two billion, one hundred twenty-one million, two hundred one thousand, one hundred twelve".