20020121011012 has 48 divisors (see below), whose sum is σ = 35186860800000. Its totient is φ = 9966844296864.

The previous prime is 20020121010847. The next prime is 20020121011019. The reversal of 20020121011012 is 21011012102002.

It is a junction number, because it is equal to n+sod(n) for n = 20020121010983 and 20020121011001.

It is not an unprimeable number, because it can be changed into a prime (20020121011019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3405358689 + ... + 3405364567.

It is an arithmetic number, because the mean of its divisors is an integer number (733059600000).

Almost surely, 2^{20020121011012} is an apocalyptic number.

It is an amenable number.

20020121011012 is a deficient number, since it is larger than the sum of its proper divisors (15166739788988).

20020121011012 is a wasteful number, since it uses less digits than its factorization.

20020121011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10048 (or 10046 counting only the distinct ones).

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

Adding to 20020121011012 its reverse (21011012102002), we get a palindrome (41031133113014).

The spelling of 20020121011012 in words is "twenty trillion, twenty billion, one hundred twenty-one million, eleven thousand, twelve".