20012220102012 has 24 divisors (see below), whose sum is σ = 46965094579536. Its totient is φ = 6632180842368.

The previous prime is 20012220102011. The next prime is 20012220102031. The reversal of 20012220102012 is 21020102221002.

It is a super-2 number, since 2×20012220102012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20012220101982 and 20012220102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012220102011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4819896793 + ... + 4819900944.

It is an arithmetic number, because the mean of its divisors is an integer number (1956878940814).

Almost surely, 2^{20012220102012} is an apocalyptic number.

It is an amenable number.

20012220102012 is an abundant number, since it is smaller than the sum of its proper divisors (26952874477524).

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

20012220102012 is a wasteful number, since it uses less digits than its factorization.

20012220102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9639797917 (or 9639797915 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20012220102012 its reverse (21020102221002), we get a palindrome (41032322323014).

The spelling of 20012220102012 in words is "twenty trillion, twelve billion, two hundred twenty million, one hundred two thousand, twelve".