20010220001100 has 180 divisors, whose sum is σ = 74131689320304. Its totient is φ = 4573764558720.

The previous prime is 20010220001089. The next prime is 20010220001153. The reversal of 20010220001100 is 110002201002.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 176400267 + ... + 176513666.

Almost surely, 2^{20010220001100} is an apocalyptic number.

20010220001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010220001100 is an abundant number, since it is smaller than the sum of its proper divisors (54121469319204).

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

20010220001100 is a wasteful number, since it uses less digits than its factorization.

20010220001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352913966 (or 352913950 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20010220001100 its reverse (110002201002), we get a palindrome (20120222202102).

The spelling of 20010220001100 in words is "twenty trillion, ten billion, two hundred twenty million, one thousand, one hundred".