201001120213220 has 24 divisors (see below), whose sum is σ = 446931902592504. Its totient is φ = 75671009962496.

The previous prime is 201001120213193. The next prime is 201001120213259. The reversal of 201001120213220 is 22312021100102.

It can be written as a sum of positive squares in 4 ways, for example, as 2057824678144 + 198943295535076 = 1434512^2 + 14104726^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 295589882327 + ... + 295589883006.

It is an arithmetic number, because the mean of its divisors is an integer number (18622162608021).

Almost surely, 2^{201001120213220} is an apocalyptic number.

201001120213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201001120213220 is an abundant number, since it is smaller than the sum of its proper divisors (245930782379284).

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

201001120213220 is a wasteful number, since it uses less digits than its factorization.

201001120213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591179765359 (or 591179765357 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 201001120213220 its reverse (22312021100102), we get a palindrome (223313141313322).

The spelling of 201001120213220 in words is "two hundred one trillion, one billion, one hundred twenty million, two hundred thirteen thousand, two hundred twenty".