20020012121112 has 16 divisors (see below), whose sum is σ = 50050030302840. Its totient is φ = 6673337373696.

The previous prime is 20020012121111. The next prime is 20020012121117. The reversal of 20020012121112 is 21112121002002.

It is a super-2 number, since 2×20020012121112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20020012121091 and 20020012121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020012121111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417083585833 + ... + 417083585880.

Almost surely, 2^{20020012121112} is an apocalyptic number.

It is an amenable number.

20020012121112 is an abundant number, since it is smaller than the sum of its proper divisors (30030018181728).

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

20020012121112 is a wasteful number, since it uses less digits than its factorization.

20020012121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834167171722 (or 834167171718 counting only the distinct ones).

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

Adding to 20020012121112 its reverse (21112121002002), we get a palindrome (41132133123114).

The spelling of 20020012121112 in words is "twenty trillion, twenty billion, twelve million, one hundred twenty-one thousand, one hundred twelve".