201220000000120 has 32 divisors (see below), whose sum is σ = 452816535567600. Its totient is φ = 80475282565888.

The previous prime is 201219999999983. The next prime is 201220000000121. The reversal of 201220000000120 is 21000000022102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 201220000000097 and 201220000000106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220000000121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397163494 + ... + 397669813.

Almost surely, 2^{201220000000120} is an apocalyptic number.

201220000000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201220000000120 is an abundant number, since it is smaller than the sum of its proper divisors (251596535567480).

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

201220000000120 is a wasteful number, since it uses less digits than its factorization.

201220000000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794839647 (or 794839643 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 201220000000120 its reverse (21000000022102), we get a palindrome (222220000022222).

The spelling of 201220000000120 in words is "two hundred one trillion, two hundred twenty billion, one hundred twenty", and thus it is an aban number.