121100102216 has 16 divisors (see below), whose sum is σ = 227748686640.
Its totient is φ = 60367119120.
The previous prime is 121100102171. The next prime is 121100102231. The reversal of 121100102216 is 612201001121.
It is a super-3 number, since 3×1211001022163 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 121100102194 and 121100102203.
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, 22863686 + ... + 22868981.
It is an arithmetic number, because the mean of its divisors is an integer number (14234292915).
Almost surely, 2121100102216 is an apocalyptic number.
It is an amenable number.
121100102216 is a deficient number, since it is larger than the sum of its proper divisors (106648584424).
121100102216 is a wasteful number, since it uses less digits than its factorization.
121100102216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45733004 (or 45733000 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 17.
Adding to 121100102216 its reverse (612201001121), we get a palindrome (733301103337).
The spelling of 121100102216 in words is "one hundred twenty-one billion, one hundred million, one hundred two thousand, two hundred sixteen".