20020112021000 has 128 divisors (see below), whose sum is σ = 57657922882560. Its totient is φ = 6336035424000.

The previous prime is 20020112020889. The next prime is 20020112021009. The reversal of 20020112021000 is 12021102002.

It is a happy number.

It is a super-3 number, since 3×20020112021000³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20020112021009) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 109909616 + ... + 110091615.

It is an arithmetic number, because the mean of its divisors is an integer number (450452522520).

Almost surely, 2^{20020112021000} is an apocalyptic number.

20020112021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020112021000 is an abundant number, since it is smaller than the sum of its proper divisors (37637810861560).

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

20020112021000 is a wasteful number, since it uses less digits than its factorization.

20020112021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220001272 (or 220001258 counting only the distinct ones).

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

Adding to 20020112021000 its reverse (12021102002), we get a palindrome (20032133123002).

The spelling of 20020112021000 in words is "twenty trillion, twenty billion, one hundred twelve million, twenty-one thousand".