201211202010120 has 128 divisors (see below), whose sum is σ = 604154548800000. Its totient is φ = 53610019946496.

The previous prime is 201211202010103. The next prime is 201211202010121. The reversal of 201211202010120 is 21010202112102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201211202010120.

It is not an unprimeable number, because it can be changed into a prime (201211202010121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3244421352 + ... + 3244483368.

It is an arithmetic number, because the mean of its divisors is an integer number (4719957412500).

Almost surely, 2^{201211202010120} is an apocalyptic number.

201211202010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201211202010120 is an abundant number, since it is smaller than the sum of its proper divisors (402943346789880).

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

201211202010120 is a wasteful number, since it uses less digits than its factorization.

201211202010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84927 (or 84923 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201211202010120 its reverse (21010202112102), we get a palindrome (222221404122222).

The spelling of 201211202010120 in words is "two hundred one trillion, two hundred eleven billion, two hundred two million, ten thousand, one hundred twenty".