121102205 has 8 divisors (see below), whose sum is σ = 166083072. Its totient is φ = 83041488.

The previous prime is 121102171. The next prime is 121102243. The reversal of 121102205 is 502201121.

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

It is a cyclic number.

It is not a de Polignac number, because 121102205 - 2¹⁴ = 121085821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121102205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729997 + ... + 1730066.

It is an arithmetic number, because the mean of its divisors is an integer number (20760384).

Almost surely, 2^121102205 is an apocalyptic number.

It is an amenable number.

121102205 is a deficient number, since it is larger than the sum of its proper divisors (44980867).

121102205 is an equidigital number, since it uses as much as digits as its factorization.

121102205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460075.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 121102205 is about 11004.6447012159. The cubic root of 121102205 is about 494.7479654276.

Adding to 121102205 its reverse (502201121), we get a palindrome (623303326).

The spelling of 121102205 in words is "one hundred twenty-one million, one hundred two thousand, two hundred five".