121105106 has 16 divisors (see below), whose sum is σ = 185490648. Its totient is φ = 59280000.

The previous prime is 121105087. The next prime is 121105121. The reversal of 121105106 is 601501121.

It can be written as a sum of positive squares in 4 ways, for example, as 107848225 + 13256881 = 10385^2 + 3641^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62756 + ... + 64656.

Almost surely, 2^121105106 is an apocalyptic number.

121105106 is a deficient number, since it is larger than the sum of its proper divisors (64385542).

121105106 is a wasteful number, since it uses less digits than its factorization.

121105106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 121105106 is about 11004.7765084076. The cubic root of 121105106 is about 494.7519159540.

Adding to 121105106 its reverse (601501121), we get a palindrome (722606227).

The spelling of 121105106 in words is "one hundred twenty-one million, one hundred five thousand, one hundred six".