201001201200220 has 96 divisors (see below), whose sum is σ = 439028661367296. Its totient is φ = 77238181843200.

The previous prime is 201001201200127. The next prime is 201001201200287. The reversal of 201001201200220 is 22002102100102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201001201200220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 842755585 + ... + 842994055.

It is an arithmetic number, because the mean of its divisors is an integer number (4573215222576).

Almost surely, 2^{201001201200220} is an apocalyptic number.

201001201200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201001201200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219514330683648).

201001201200220 is an abundant number, since it is smaller than the sum of its proper divisors (238027460167076).

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

201001201200220 is a wasteful number, since it uses less digits than its factorization.

201001201200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254651 (or 254649 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201001201200220 its reverse (22002102100102), we get a palindrome (223003303300322).

The spelling of 201001201200220 in words is "two hundred one trillion, one billion, two hundred one million, two hundred thousand, two hundred twenty".