201220110111012 has 24 divisors (see below), whose sum is σ = 471478082275200. Its totient is φ = 66792728320416.

The previous prime is 201220110111011. The next prime is 201220110111043. The reversal of 201220110111012 is 210111011022102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201220110110982 and 201220110111000.

It is not an unprimeable number, because it can be changed into a prime (201220110111011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35080211587 + ... + 35080217322.

It is an arithmetic number, because the mean of its divisors is an integer number (19644920094800).

Almost surely, 2^{201220110111012} is an apocalyptic number.

It is an amenable number.

201220110111012 is an abundant number, since it is smaller than the sum of its proper divisors (270257972164188).

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

201220110111012 is a wasteful number, since it uses less digits than its factorization.

201220110111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70160429155 (or 70160429153 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201220110111012 its reverse (210111011022102), we get a palindrome (411331121133114).

The spelling of 201220110111012 in words is "two hundred one trillion, two hundred twenty billion, one hundred ten million, one hundred eleven thousand, twelve".