201020111202220 has 48 divisors (see below), whose sum is σ = 447735585134880. Its totient is φ = 75549235825664.

The previous prime is 201020111202173. The next prime is 201020111202223. The reversal of 201020111202220 is 22202111020102.

It is a happy number.

201020111202220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201020111202194 and 201020111202203.

It is not an unprimeable number, because it can be changed into a prime (201020111202223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503408275 + ... + 503807434.

It is an arithmetic number, because the mean of its divisors is an integer number (9327824690310).

Almost surely, 2^{201020111202220} is an apocalyptic number.

201020111202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020111202220 is an abundant number, since it is smaller than the sum of its proper divisors (246715473932660).

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

201020111202220 is a wasteful number, since it uses less digits than its factorization.

201020111202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007216322 (or 1007216320 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201020111202220 its reverse (22202111020102), we get a palindrome (223222222222322).

The spelling of 201020111202220 in words is "two hundred one trillion, twenty billion, one hundred eleven million, two hundred two thousand, two hundred twenty".