20020120001012 has 24 divisors (see below), whose sum is σ = 36666962195136. Its totient is φ = 9546427997568.

The previous prime is 20020120000961. The next prime is 20020120001027. The reversal of 20020120001012 is 21010002102002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20020120000984 and 20020120001002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322832498 + ... + 322894505.

It is an arithmetic number, because the mean of its divisors is an integer number (1527790091464).

Almost surely, 2^{20020120001012} is an apocalyptic number.

It is an amenable number.

20020120001012 is a deficient number, since it is larger than the sum of its proper divisors (16646842194124).

20020120001012 is a wasteful number, since it uses less digits than its factorization.

20020120001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645727367 (or 645727365 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20020120001012 its reverse (21010002102002), we get a palindrome (41030122103014).

The spelling of 20020120001012 in words is "twenty trillion, twenty billion, one hundred twenty million, one thousand, twelve".