20020111212200 has 384 divisors, whose sum is σ = 55071774288000. Its totient is φ = 6690653798400.

The previous prime is 20020111212151. The next prime is 20020111212203. The reversal of 20020111212200 is 221211102002.

It is not an unprimeable number, because it can be changed into a prime (20020111212203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 197119832 + ... + 197221368.

It is an arithmetic number, because the mean of its divisors is an integer number (143416078875).

Almost surely, 2^{20020111212200} is an apocalyptic number.

20020111212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020111212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27535887144000).

20020111212200 is an abundant number, since it is smaller than the sum of its proper divisors (35051663075800).

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

20020111212200 is a wasteful number, since it uses less digits than its factorization.

20020111212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101725 (or 101716 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20020111212200 its reverse (221211102002), we get a palindrome (20241322314202).

The spelling of 20020111212200 in words is "twenty trillion, twenty billion, one hundred eleven million, two hundred twelve thousand, two hundred".