211102102032121 has 16 divisors (see below), whose sum is σ = 228308029709760. Its totient is φ = 194534652049920.

The previous prime is 211102102032113. The next prime is 211102102032253. The reversal of 211102102032121 is 121230201201112.

It is a cyclic number.

It is not a de Polignac number, because 211102102032121 - 2³ = 211102102032113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211102172032121) 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, 401801491 + ... + 402326536.

It is an arithmetic number, because the mean of its divisors is an integer number (14269251856860).

Almost surely, 2^{211102102032121} is an apocalyptic number.

It is an amenable number.

211102102032121 is a deficient number, since it is larger than the sum of its proper divisors (17205927677639).

211102102032121 is a wasteful number, since it uses less digits than its factorization.

211102102032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804128424.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211102102032121 its reverse (121230201201112), we get a palindrome (332332303233233).

The spelling of 211102102032121 in words is "two hundred eleven trillion, one hundred two billion, one hundred two million, thirty-two thousand, one hundred twenty-one".