201121012102102 has 16 divisors (see below), whose sum is σ = 301944564086112. Its totient is φ = 100472859146880.

The previous prime is 201121012102067. The next prime is 201121012102103. The reversal of 201121012102102 is 201201210121102.

It is a super-4 number, since 4×201121012102102⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121012102103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2705952 + ... + 20237692.

It is an arithmetic number, because the mean of its divisors is an integer number (18871535255382).

Almost surely, 2^{201121012102102} is an apocalyptic number.

201121012102102 is a deficient number, since it is larger than the sum of its proper divisors (100823551984010).

201121012102102 is a wasteful number, since it uses less digits than its factorization.

201121012102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17536743.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201121012102102 its reverse (201201210121102), we get a palindrome (402322222223204).

The spelling of 201121012102102 in words is "two hundred one trillion, one hundred twenty-one billion, twelve million, one hundred two thousand, one hundred two".