201100202220020 has 24 divisors (see below), whose sum is σ = 435933341587968. Its totient is φ = 77845239568800.

The previous prime is 201100202220019. The next prime is 201100202220067. The reversal of 201100202220020 is 20022202001102.

It is a junction number, because it is equal to n+sod(n) for n = 201100202219977 and 201100202220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162177581816 + ... + 162177583055.

It is an arithmetic number, because the mean of its divisors is an integer number (18163889232832).

Almost surely, 2^{201100202220020} is an apocalyptic number.

201100202220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100202220020 is an abundant number, since it is smaller than the sum of its proper divisors (234833139367948).

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

201100202220020 is a wasteful number, since it uses less digits than its factorization.

201100202220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324355164911 (or 324355164909 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201100202220020 its reverse (20022202001102), we get a palindrome (221122404221122).

The spelling of 201100202220020 in words is "two hundred one trillion, one hundred billion, two hundred two million, two hundred twenty thousand, twenty".