201220110122120 has 32 divisors (see below), whose sum is σ = 453417974800920. Its totient is φ = 80368448133120.

The previous prime is 201220110122081. The next prime is 201220110122123. The reversal of 201220110122120 is 21221011022102.

It can be written as a sum of positive squares in 4 ways, for example, as 116154204480196 + 85065905641924 = 10777486^2 + 9223118^2 .

It is not an unprimeable number, because it can be changed into a prime (201220110122123) 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, 3737345111 + ... + 3737398950.

Almost surely, 2^{201220110122120} is an apocalyptic number.

201220110122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201220110122120 is an abundant number, since it is smaller than the sum of its proper divisors (252197864678800).

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

201220110122120 is a wasteful number, since it uses less digits than its factorization.

201220110122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7474744745 (or 7474744741 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201220110122120 its reverse (21221011022102), we get a palindrome (222441121144222).

The spelling of 201220110122120 in words is "two hundred one trillion, two hundred twenty billion, one hundred ten million, one hundred twenty-two thousand, one hundred twenty".