20012110221012 has 96 divisors (see below), whose sum is σ = 57473673406464. Its totient is φ = 5277643862400.

The previous prime is 20012110220987. The next prime is 20012110221041. The reversal of 20012110221012 is 21012201121002.

It is a junction number, because it is equal to n+sod(n) for n = 20012110220982 and 20012110221000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20903337 + ... + 21839727.

It is an arithmetic number, because the mean of its divisors is an integer number (598684097984).

Almost surely, 2^{20012110221012} is an apocalyptic number.

It is an amenable number.

20012110221012 is an abundant number, since it is smaller than the sum of its proper divisors (37461563185452).

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

20012110221012 is a wasteful number, since it uses less digits than its factorization.

20012110221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955989 (or 955987 counting only the distinct ones).

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

Adding to 20012110221012 its reverse (21012201121002), we get a palindrome (41024311342014).

The spelling of 20012110221012 in words is "twenty trillion, twelve billion, one hundred ten million, two hundred twenty-one thousand, twelve".