201020201221104 has 120 divisors (see below), whose sum is σ = 562877557079760. Its totient is φ = 66970987474944.

The previous prime is 201020201221069. The next prime is 201020201221129. The reversal of 201020201221104 is 401122102020102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2657939962 + ... + 2658015590.

It is an arithmetic number, because the mean of its divisors is an integer number (4690646308998).

Almost surely, 2^{201020201221104} is an apocalyptic number.

201020201221104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201020201221104 is an abundant number, since it is smaller than the sum of its proper divisors (361857355858656).

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

201020201221104 is a wasteful number, since it uses less digits than its factorization.

201020201221104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85247 (or 85238 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201020201221104 its reverse (401122102020102), we get a palindrome (602142303241206).

The spelling of 201020201221104 in words is "two hundred one trillion, twenty billion, two hundred one million, two hundred twenty-one thousand, one hundred four".