20021011120012 has 24 divisors (see below), whose sum is σ = 40046084261120. Its totient is φ = 8579562904080.

The previous prime is 20021011119959. The next prime is 20021011120037. The reversal of 20021011120012 is 21002111012002.

It is a junction number, because it is equal to n+sod(n) for n = 20021011119974 and 20021011120001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35987064 + ... + 36539167.

Almost surely, 2^{20021011120012} is an apocalyptic number.

It is an amenable number.

20021011120012 is an abundant number, since it is smaller than the sum of its proper divisors (20025073141108).

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

20021011120012 is a wasteful number, since it uses less digits than its factorization.

20021011120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72536101 (or 72536099 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20021011120012 its reverse (21002111012002), we get a palindrome (41023122132014).

The spelling of 20021011120012 in words is "twenty trillion, twenty-one billion, eleven million, one hundred twenty thousand, twelve".