201021221102012 has 12 divisors (see below), whose sum is σ = 351787596381816. Its totient is φ = 100510479278640.

The previous prime is 201021221102003. The next prime is 201021221102173. The reversal of 201021221102012 is 210201122120102.

It is a super-3 number, since 3×201021221102012³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29331443 + ... + 35529930.

It is an arithmetic number, because the mean of its divisors is an integer number (29315633031818).

Almost surely, 2^{201021221102012} is an apocalyptic number.

It is an amenable number.

201021221102012 is a deficient number, since it is larger than the sum of its proper divisors (150766375279804).

201021221102012 is a wasteful number, since it uses less digits than its factorization.

201021221102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65636188 (or 65636186 counting only the distinct ones).

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

Adding to 201021221102012 its reverse (210201122120102), we get a palindrome (411222343222114).

The spelling of 201021221102012 in words is "two hundred one trillion, twenty-one billion, two hundred twenty-one million, one hundred two thousand, twelve".