201102100121121 has 16 divisors (see below), whose sum is σ = 269812417830144. Its totient is φ = 133230115296144.

The previous prime is 201102100121113. The next prime is 201102100121129. The reversal of 201102100121121 is 121121001201102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201102100121113) and next prime (201102100121129).

It is not a de Polignac number, because 201102100121121 - 2³ = 201102100121113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201102100121121.

It is not an unprimeable number, because it can be changed into a prime (201102100121129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19616551 + ... + 28053756.

It is an arithmetic number, because the mean of its divisors is an integer number (16863276114384).

Almost surely, 2^{201102100121121} is an apocalyptic number.

It is an amenable number.

201102100121121 is a deficient number, since it is larger than the sum of its proper divisors (68710317709023).

201102100121121 is a wasteful number, since it uses less digits than its factorization.

201102100121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47679100.

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

Adding to 201102100121121 its reverse (121121001201102), we get a palindrome (322223101322223).

The spelling of 201102100121121 in words is "two hundred one trillion, one hundred two billion, one hundred million, one hundred twenty-one thousand, one hundred twenty-one".