201121021102 has 8 divisors (see below), whose sum is σ = 301718750112. Its totient is φ = 100548104400.

The previous prime is 201121021061. The next prime is 201121021111. The reversal of 201121021102 is 201120121102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×201121021102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6182799 + ... + 6215242.

It is an arithmetic number, because the mean of its divisors is an integer number (37714843764).

Almost surely, 2^201121021102 is an apocalyptic number.

201121021102 is a deficient number, since it is larger than the sum of its proper divisors (100597729010).

201121021102 is a wasteful number, since it uses less digits than its factorization.

201121021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406154.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201121021102 its reverse (201120121102), we get a palindrome (402241142204).

The spelling of 201121021102 in words is "two hundred one billion, one hundred twenty-one million, twenty-one thousand, one hundred two".