201111101021012 has 48 divisors (see below), whose sum is σ = 435582273087360. Its totient is φ = 79115963836032.

The previous prime is 201111101021009. The next prime is 201111101021027. The reversal of 201111101021012 is 210120101111102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543239383 + ... + 1543369694.

It is an arithmetic number, because the mean of its divisors is an integer number (9074630689320).

Almost surely, 2^{201111101021012} is an apocalyptic number.

It is an amenable number.

201111101021012 is an abundant number, since it is smaller than the sum of its proper divisors (234471172066348).

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

201111101021012 is a wasteful number, since it uses less digits than its factorization.

201111101021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086609280 (or 3086609278 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201111101021012 its reverse (210120101111102), we get a palindrome (411231202132114).

The spelling of 201111101021012 in words is "two hundred one trillion, one hundred eleven billion, one hundred one million, twenty-one thousand, twelve".